Sure thing, let's get straight to it. We start with 879 and we're going to multiply it by 491, which means adding 879 to itself 491 times.
Step 1: 0 + 879 = 879
Step 2: 879 + 879 = 1758
Step 3: 1758 + 879 = 2637
Step 4: 2637 + 879 = 3516
Step 5: 3516 + 879 = 4395
Step 6: 4395 + 879 = 5274
Step 7: 5274 + 879 = 6153
Step 8: 6153 + 879 = 7032
Step 9: 7032 + 879 = 7911
Step 10: 7911 + 879 = 8790
Step 11: 8790 + 879 = 9669
Step 12: 9669 + 879 = 10548
Step 13: 10548 + 879 = 11427
Step 14: 11427 + 879 = 12306
Step 15: 12306 + 879 = 13185
Step 16: 13185 + 879 = 14064
Step 17: 14064 + 879 = 14943
Step 18: 14943 + 879 = 15822
Step 19: 15822 + 879 = 16701
Step 20: 16701 + 879 = 17580
Step 21: 17580 + 879 = 18459
Step 22: 18459 + 879 = 19338
Step 23: 19338 + 879 = 20217
Step 24: 20217 + 879 = 21096
Step 25: 21096 + 879 = 21975
Step 26: 21975 + 879 = 22854
Step 27: 22854 + 879 = 23733
Step 28: 23733 + 879 = 24612
Step 29: 24612 + 879 = 25491
Step 30: 25491 + 879 = 26370
Step 31: 26370 + 879 = 27249
Step 32: 27249 + 879 = 28128
Step 33: 28128 + 879 = 29007
Step 34: 29007 + 879 = 29886
Step 35: 29886 + 879 = 30765
Step 36: 30765 + 879 = 31644
Step 37: 31644 + 879 = 32523
Step 38: 32523 + 879 = 33402
Step 39: 33402 + 879 = 34281
Step 40: 34281 + 879 = 35160
Step 41: 35160 + 879 = 36039
Step 42: 36039 + 879 = 36918
Step 43: 36918 + 879 = 37797
Step 44: 37797 + 879 = 38676
Step 45: 38676 + 879 = 39555
Step 46: 39555 + 879 = 40434
Step 47: 40434 + 879 = 41313
Step 48: 41313 + 879 = 42192
Step 49: 42192 + 879 = 43071
Step 50: 43071 + 879 = 43950
Step 51: 43950 + 879 = 44829
Step 52: 44829 + 879 = 45708
Step 53: 45708 + 879 = 46587
Step 54: 46587 + 879 = 47466
Step 55: 47466 + 879 = 48345
Step 56: 48345 + 879 = 49224
Step 57: 49224 + 879 = 50103
Step 58: 50103 + 879 = 50982
Step 59: 50982 + 879 = 51861
Step 60: 51861 + 879 = 52740
Step 61: 52740 + 879 = 53619
Step 62: 53619 + 879 = 54498
Step 63: 54498 + 879 = 55377
Step 64: 55377 + 879 = 56256
Step 65: 56256 + 879 = 57135
Step 66: 57135 + 879 = 58014
Step 67: 58014 + 879 = 58893
Step 68: 58893 + 879 = 59772
Step 69: 59772 + 879 = 60651
Step 70: 60651 + 879 = 61530
Step 71: 61530 + 879 = 62409
Step 72: 62409 + 879 = 63288
Step 73: 63288 + 879 = 64167
Step 74: 64167 + 879 = 65046
Step 75: 65046 + 879 = 65925
Step 76: 65925 + 879 = 66804
Step 77: 66804 + 879 = 67683
Step 78: 67683 + 879 = 68562
Step 79: 68562 + 879 = 69441
Step 80: 69441 + 879 = 70320
Step 81: 70320 + 879 = 71199
Step 82: 71199 + 879 = 72078
Step 83: 72078 + 879 = 72957
Step 84: 72957 + 879 = 73836
Step 85: 73836 + 879 = 74715
Step 86: 74715 + 879 = 75594
Step 87: 75594 + 879 = 76473
Step 88: 76473 + 879 = 77352
Step 89: 77352 + 879 = 78231
Step 90: 78231 + 879 = 79110
Step 91: 79110 + 879 = 79989
Step 92: 79989 + 879 = 80868
Step 93: 80868 + 879 = 81747
Step 94: 81747 + 879 = 82626
Step 95: 82626 + 879 = 83505
Step 96: 83505 + 879 = 84384
Step 97: 84384 + 879 = 85263
Step 98: 85263 + 879 = 86142
Step 99: 86142 + 879 = 87021
Step 100: 87021 + 879 = 87900
Step 101: 87900 + 879 = 88779
Step 102: 88779 + 879 = 89658
Step 103: 89658 + 879 = 90537
Step 104: 90537 + 879 = 91416
Step 105: 91416 + 879 = 92295
Step 106: 92295 + 879 = 93174
Step 107: 93174 + 879 = 94053
Step 108: 94053 + 879 = 94932
Step 109: 94932 + 879 = 95811
Step 110: 95811 + 879 = 96690
Step 111: 96690 + 879 = 97569
Step 112: 97569 + 879 = 98448
Step 113: 98448 + 879 = 99327
Step 114: 99327 + 879 = 100206
Step 115: 100206 + 879 = 101085
Step 116: 101085 + 879 = 101964
Step 117: 101964 + 879 = 102843
Step 118: 102843 + 879 = 103722
Step 119: 103722 + 879 = 104601
Step 120: 104601 + 879 = 105480
Step 121: 105480 + 879 = 106359
Step 122: 106359 + 879 = 107238
Step 123: 107238 + 879 = 108117
Step 124: 108117 + 879 = 108996
Step 125: 108996 + 879 = 109875
Step 126: 109875 + 879 = 110754
Step 127: 110754 + 879 = 111633
Step 128: 111633 + 879 = 112512
Step 129: 112512 + 879 = 113391
Step 130: 113391 + 879 = 114270
Step 131: 114270 + 879 = 115149
Step 132: 115149 + 879 = 116028
Step 133: 116028 + 879 = 116907
Step 134: 116907 + 879 = 117786
Step 135: 117786 + 879 = 118665
Step 136: 118665 + 879 = 119544
Step 137: 119544 + 879 = 120423
Step 138: 120423 + 879 = 121302
Step 139: 121302 + 879 = 122181
Step 140: 122181 + 879 = 123060
Step 141: 123060 + 879 = 123939
Step 142: 123939 + 879 = 124818
Step 143: 124818 + 879 = 125697
Step 144: 125697 + 879 = 126576
Step 145: 126576 + 879 = 127455
Step 146: 127455 + 879 = 128334
Step 147: 128334 + 879 = 129213
Step 148: 129213 + 879 = 130092
Step 149: 130092 + 879 = 130971
Step 150: 130971 + 879 = 131850
Step 151: 131850 + 879 = 132729
Step 152: 132729 + 879 = 133608
Step 153: 133608 + 879 = 134487
Step 154: 134487 + 879 = 135366
Step 155: 135366 + 879 = 136245
Step 156: 136245 + 879 = 137124
Step 157: 137124 + 879 = 138003
Step 158: 138003 + 879 = 138882
Step 159: 138882 + 879 = 139761
Step 160: 139761 + 879 = 140640
Step 161: 140640 + 879 = 141519
Step 162: 141519 + 879 = 142398
Step 163: 142398 + 879 = 143277
Step 164: 143277 + 879 = 144156
Step 165: 144156 + 879 = 145035
Step 166: 145035 + 879 = 145914
Step 167: 145914 + 879 = 146793
Step 168: 146793 + 879 = 147672
Step 169: 147672 + 879 = 148551
Step 170: 148551 + 879 = 149430
Step 171: 149430 + 879 = 150309
Step 172: 150309 + 879 = 151188
Step 173: 151188 + 879 = 152067
Step 174: 152067 + 879 = 152946
Step 175: 152946 + 879 = 153825
Step 176: 153825 + 879 = 154704
Step 177: 154704 + 879 = 155583
Step 178: 155583 + 879 = 156462
Step 179: 156462 + 879 = 157341
Step 180: 157341 + 879 = 158220
Step 181: 158220 + 879 = 159099
Step 182: 159099 + 879 = 159978
Step 183: 159978 + 879 = 160857
Step 184: 160857 + 879 = 161736
Step 185: 161736 + 879 = 162615
Step 186: 162615 + 879 = 163494
Step 187: 163494 + 879 = 164373
Step 188: 164373 + 879 = 165252
Step 189: 165252 + 879 = 166131
Step 190: 166131 + 879 = 167010
Step 191: 167010 + 879 = 167889
Step 192: 167889 + 879 = 168768
Step 193: 168768 + 879 = 169647
Step 194: 169647 + 879 = 170526
Step 195: 170526 + 879 = 171405
Step 196: 171405 + 879 = 172284
Step 197: 172284 + 879 = 173163
Step 198: 173163 + 879 = 174042
Step 199: 174042 + 879 = 174921
Step 200: 174921 + 879 = 175800
Step 201: 175800 + 879 = 176679
Step 202: 176679 + 879 = 177558
Step 203: 177558 + 879 = 178437
Step 204: 178437 + 879 = 179316
Step 205: 179316 + 879 = 180195
Step 206: 180195 + 879 = 181074
Step 207: 181074 + 879 = 181953
Step 208: 181953 + 879 = 182832
Step 209: 182832 + 879 = 183711
Step 210: 183711 + 879 = 184590
Step 211: 184590 + 879 = 185469
Step 212: 185469 + 879 = 186348
Step 213: 186348 + 879 = 187227
Step 214: 187227 + 879 = 188106
Step 215: 188106 + 879 = 188985
Step 216: 188985 + 879 = 189864
Step 217: 189864 + 879 = 190743
Step 218: 190743 + 879 = 191622
Step 219: 191622 + 879 = 192501
Step 220: 192501 + 879 = 193380
Step 221: 193380 + 879 = 194259
Step 222: 194259 + 879 = 195138
Step 223: 195138 + 879 = 196017
Step 224: 196017 + 879 = 196896
Step 225: 196896 + 879 = 197775
Step 226: 197775 + 879 = 198654
Step 227: 198654 + 879 = 199533
Step 228: 199533 + 879 = 200412
Step 229: 200412 + 879 = 201291
Step 230: 201291 + 879 = 202170
Step 231: 202170 + 879 = 203049
Step 232: 203049 + 879 = 203928
Step 233: 203928 + 879 = 204807
Step 234: 204807 + 879 = 205686
Step 235: 205686 + 879 = 206565
Step 236: 206565 + 879 = 207444
Step 237: 207444 + 879 = 208323
Step 238: 208323 + 879 = 209202
Step 239: 209202 + 879 = 210081
Step 240: 210081 + 879 = 210960
Step 241: 210960 + 879 = 211839
Step 242: 211839 + 879 = 212718
Step 243: 212718 + 879 = 213597
Step 244: 213597 + 879 = 214476
Step 245: 214476 + 879 = 215355
Step 246: 215355 + 879 = 216234
Step 247: 216234 + 879 = 217113
Step 248: 217113 + 879 = 217992
Step 249: 217992 + 879 = 218871
Step 250: 218871 + 879 = 219750
Step 251: 219750 + 879 = 220629
Step 252: 220629 + 879 = 221508
Step 253: 221508 + 879 = 222387
Step 254: 222387 + 879 = 223266
Step 255: 223266 + 879 = 224145
Step 256: 224145 + 879 = 225024
Step 257: 225024 + 879 = 225903
Step 258: 225903 + 879 = 226782
Step 259: 226782 + 879 = 227661
Step 260: 227661 + 879 = 228540
Step 261: 228540 + 879 = 229419
Step 262: 229419 + 879 = 230298
Step 263: 230298 + 879 = 231177
Step 264: 231177 + 879 = 232056
Step 265: 232056 + 879 = 232935
Step 266: 232935 + 879 = 233814
Step 267: 233814 + 879 = 234693
Step 268: 234693 + 879 = 235572
Step 269: 235572 + 879 = 236451
Step 270: 236451 + 879 = 237330
Step 271: 237330 + 879 = 238209
Step 272: 238209 + 879 = 239088
Step 273: 239088 + 879 = 239967
Step 274: 239967 + 879 = 240846
Step 275: 240846 + 879 = 241725
Step 276: 241725 + 879 = 242604
Step 277: 242604 + 879 = 243483
Step 278: 243483 + 879 = 244362
Step 279: 244362 + 879 = 245241
Step 280: 245241 + 879 = 246120
Step 281: 246120 + 879 = 246999
Step 282: 246999 + 879 = 247878
Step 283: 247878 + 879 = 248757
Step 284: 248757 + 879 = 249636
Step 285: 249636 + 879 = 250515
Step 286: 250515 + 879 = 251394
Step 287: 251394 + 879 = 252273
Step 288: 252273 + 879 = 253152
Step 289: 253152 + 879 = 254031
Step 290: 254031 + 879 = 254910
Step 291: 254910 + 879 = 255789
Step 292: 255789 + 879 = 256668
Step 293: 256668 + 879 = 257547
Step 294: 257547 + 879 = 258426
Step 295: 258426 + 879 = 259305
Step 296: 259305 + 879 = 260184
Step 297: 260184 + 879 = 261063
Step 298: 261063 + 879 = 261942
Step 299: 261942 + 879 = 262821
Step 300: 262821 + 879 = 263700
Step 301: 263700 + 879 = 264579
Step 302: 264579 + 879 = 265458
Step 303: 265458 + 879 = 266337
Step 304: 266337 + 879 = 267216
Step 305: 267216 + 879 = 268095
Step 306: 268095 + 879 = 268974
Step 307: 268974 + 879 = 269853
Step 308: 269853 + 879 = 270732
Step 309: 270732 + 879 = 271611
Step 310: 271611 + 879 = 272490
Step 311: 272490 + 879 = 273369
Step 312: 273369 + 879 = 274248
Step 313: 274248 + 879 = 275127
Step 314: 275127 + 879 = 276006
Step 315: 276006 + 879 = 276885
Step 316: 276885 + 879 = 277764
Step 317: 277764 + 879 = 278643
Step 318: 278643 + 879 = 279522
Step 319: 279522 + 879 = 280401
Step 320: 280401 + 879 = 281280
Step 321: 281280 + 879 = 282159
Step 322: 282159 + 879 = 283038
Step 323: 283038 + 879 = 283917
Step 324: 283917 + 879 = 284796
Step 325: 284796 + 879 = 285675
Step 326: 285675 + 879 = 286554
Step 327: 286554 + 879 = 287433
Step 328: 287433 + 879 = 288312
Step 329: 288312 + 879 = 289191
Step 330: 289191 + 879 = 290070
Step 331: 290070 + 879 = 290949
Step 332: 290949 + 879 = 291828
Step 333: 291828 + 879 = 292707
Step 334: 292707 + 879 = 293586
Step 335: 293586 + 879 = 294465
Step 336: 294465 + 879 = 295344
Step 337: 295344 + 879 = 296223
Step 338: 296223 + 879 = 297102
Step 339: 297102 + 879 = 297981
Step 340: 297981 + 879 = 298860
Step 341: 298860 + 879 = 299739
Step 342: 299739 + 879 = 300618
Step 343: 300618 + 879 = 301497
Step 344: 301497 + 879 = 302376
Step 345: 302376 + 879 = 303255
Step 346: 303255 + 879 = 304134
Step 347: 304134 + 879 = 305013
Step 348: 305013 + 879 = 305892
Step 349: 305892 + 879 = 306771
Step 350: 306771 + 879 = 307650
Step 351: 307650 + 879 = 308529
Step 352: 308529 + 879 = 309408
Step 353: 309408 + 879 = 310287
Step 354: 310287 + 879 = 311166
Step 355: 311166 + 879 = 312045
Step 356: 312045 + 879 = 312924
Step 357: 312924 + 879 = 313803
Step 358: 313803 + 879 = 314682
Step 359: 314682 + 879 = 315561
Step 360: 315561 + 879 = 316440
Step 361: 316440 + 879 = 317319
Step 362: 317319 + 879 = 318198
Step 363: 318198 + 879 = 319077
Step 364: 319077 + 879 = 319956
Step 365: 319956 + 879 = 320835
Step 366: 320835 + 879 = 321714
Step 367: 321714 + 879 = 322593
Step 368: 322593 + 879 = 323472
Step 369: 323472 + 879 = 324351
Step 370: 324351 + 879 = 325230
Step 371: 325230 + 879 = 326109
Step 372: 326109 + 879 = 326988
Step 373: 326988 + 879 = 327867
Step 374: 327867 + 879 = 328746
Step 375: 328746 + 879 = 329625
Step 376: 329625 + 879 = 330504
Step 377: 330504 + 879 = 331383
Step 378: 331383 + 879 = 332262
Step 379: 332262 + 879 = 333141
Step 380: 333141 + 879 = 334020
Step 381: 334020 + 879 = 334899
Step 382: 334899 + 879 = 335778
Step 383: 335778 + 879 = 336657
Step 384: 336657 + 879 = 337536
Step 385: 337536 + 879 = 338415
Step 386: 338415 + 879 = 339294
Step 387: 339294 + 879 = 340173
Step 388: 340173 + 879 = 341052
Step 389: 341052 + 879 = 341931
Step 390: 341931 + 879 = 342810
Step 391: 342810 + 879 = 343689
Step 392: 343689 + 879 = 344568
Step 393: 344568 + 879 = 345447
Step 394: 345447 + 879 = 346326
Step 395: 346326 + 879 = 347205
Step 396: 347205 + 879 = 348084
Step 397: 348084 + 879 = 348963
Step 398: 348963 + 879 = 349842
Step 399: 349842 + 879 = 350721
Step 400: 350721 + 879 = 351600
Step 401: 351600 + 879 = 352479
Step 402: 352479 + 879 = 353358
Step 403: 353358 + 879 = 354237
Step 404: 354237 + 879 = 355116
Step 405: 355116 + 879 = 355995
Step 406: 355995 + 879 = 356874
Step 407: 356874 + 879 = 357753
Step 408: 357753 + 879 = 358632
Step 409: 358632 + 879 = 359511
Step 410: 359511 + 879 = 360390
Step 411: 360390 + 879 = 361269
Step 412: 361269 + 879 = 362148
Step 413: 362148 + 879 = 363027
Step 414: 363027 + 879 = 363906
Step 415: 363906 + 879 = 364785
Step 416: 364785 + 879 = 365664
Step 417: 365664 + 879 = 366543
Step 418: 366543 + 879 = 367422
Step 419: 367422 + 879 = 368301
Step 420: 368301 + 879 = 369180
Step 421: 369180 + 879 = 370059
Step 422: 370059 + 879 = 370938
Step 423: 370938 + 879 = 371817
Step 424: 371817 + 879 = 372696
Step 425: 372696 + 879 = 373575
Step 426: 373575 + 879 = 374454
Step 427: 374454 + 879 = 375333
Step 428: 375333 + 879 = 376212
Step 429: 376212 + 879 = 377091
Step 430: 377091 + 879 = 377970
Step 431: 377970 + 879 = 378849
Step 432: 378849 + 879 = 379728
Step 433: 379728 + 879 = 380607
Step 434: 380607 + 879 = 381486
Step 435: 381486 + 879 = 382365
Step 436: 382365 + 879 = 383244
Step 437: 383244 + 879 = 384123
Step 438: 384123 + 879 = 385002
Step 439: 385002 + 879 = 385881
Step 440: 385881 + 879 = 386760
Step 441: 386760 + 879 = 387639
Step 442: 387639 + 879 = 388518
Step 443: 388518 + 879 = 389397
Step 444: 389397 + 879 = 390276
Step 445: 390276 + 879 = 391155
Step 446: 391155 + 879 = 392034
Step 447: 392034 + 879 = 392913
Step 448: 392913 + 879 = 393792
Step 449: 393792 + 879 = 394671
Step 450: 394671 + 879 = 395550
Step 451: 395550 + 879 = 396429
Step 452: 396429 + 879 = 397308
Step 453: 397308 + 879 = 398187
Step 454: 398187 + 879 = 399066
Step 455: 399066 + 879 = 399945
Step 456: 399945 + 879 = 400824
Step 457: 400824 + 879 = 401703
Step 458: 401703 + 879 = 402582
Step 459: 402582 + 879 = 403461
Step 460: 403461 + 879 = 404340
Step 461: 404340 + 879 = 405219
Step 462: 405219 + 879 = 406098
Step 463: 406098 + 879 = 406977
Step 464: 406977 + 879 = 407856
Step 465: 407856 + 879 = 408735
Step 466: 408735 + 879 = 409614
Step 467: 409614 + 879 = 410493
Step 468: 410493 + 879 = 411372
Step 469: 411372 + 879 = 412251
Step 470: 412251 + 879 = 413130
Step 471: 413130 + 879 = 414009
Step 472: 414009 + 879 = 414888
Step 473: 414888 + 879 = 415767
Step 474: 415767 + 879 = 416646
Step 475: 416646 + 879 = 417525
Step 476: 417525 + 879 = 418404
Step 477: 418404 + 879 = 419283
Step 478: 419283 + 879 = 420162
Step 479: 420162 + 879 = 421041
Step 480: 421041 + 879 = 421920
Step 481: 421920 + 879 = 422799
Step 482: 422799 + 879 = 423678
Step 483: 423678 + 879 = 424557
Step 484: 424557 + 879 = 425436
Step 485: 425436 + 879 = 426315
Step 486: 426315 + 879 = 427194
Step 487: 427194 + 879 = 428073
Step 488: 428073 + 879 = 428952
Step 489: 428952 + 879 = 429831
Step 490: 429831 + 879 = 430710
Step 491: 430710 + 879 = 431589

So, 879*491 = 431589