Alright, let's solve this math problem step by step. First, we have the number 839. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 440. So, we're going to take the number 839 and add it to itself 440 times.
Step 1: 0 + 839 = 839
Step 2: 839 + 839 = 1678
Step 3: 1678 + 839 = 2517
Step 4: 2517 + 839 = 3356
Step 5: 3356 + 839 = 4195
Step 6: 4195 + 839 = 5034
Step 7: 5034 + 839 = 5873
Step 8: 5873 + 839 = 6712
Step 9: 6712 + 839 = 7551
Step 10: 7551 + 839 = 8390
Step 11: 8390 + 839 = 9229
Step 12: 9229 + 839 = 10068
Step 13: 10068 + 839 = 10907
Step 14: 10907 + 839 = 11746
Step 15: 11746 + 839 = 12585
Step 16: 12585 + 839 = 13424
Step 17: 13424 + 839 = 14263
Step 18: 14263 + 839 = 15102
Step 19: 15102 + 839 = 15941
Step 20: 15941 + 839 = 16780
Step 21: 16780 + 839 = 17619
Step 22: 17619 + 839 = 18458
Step 23: 18458 + 839 = 19297
Step 24: 19297 + 839 = 20136
Step 25: 20136 + 839 = 20975
Step 26: 20975 + 839 = 21814
Step 27: 21814 + 839 = 22653
Step 28: 22653 + 839 = 23492
Step 29: 23492 + 839 = 24331
Step 30: 24331 + 839 = 25170
Step 31: 25170 + 839 = 26009
Step 32: 26009 + 839 = 26848
Step 33: 26848 + 839 = 27687
Step 34: 27687 + 839 = 28526
Step 35: 28526 + 839 = 29365
Step 36: 29365 + 839 = 30204
Step 37: 30204 + 839 = 31043
Step 38: 31043 + 839 = 31882
Step 39: 31882 + 839 = 32721
Step 40: 32721 + 839 = 33560
Step 41: 33560 + 839 = 34399
Step 42: 34399 + 839 = 35238
Step 43: 35238 + 839 = 36077
Step 44: 36077 + 839 = 36916
Step 45: 36916 + 839 = 37755
Step 46: 37755 + 839 = 38594
Step 47: 38594 + 839 = 39433
Step 48: 39433 + 839 = 40272
Step 49: 40272 + 839 = 41111
Step 50: 41111 + 839 = 41950
Step 51: 41950 + 839 = 42789
Step 52: 42789 + 839 = 43628
Step 53: 43628 + 839 = 44467
Step 54: 44467 + 839 = 45306
Step 55: 45306 + 839 = 46145
Step 56: 46145 + 839 = 46984
Step 57: 46984 + 839 = 47823
Step 58: 47823 + 839 = 48662
Step 59: 48662 + 839 = 49501
Step 60: 49501 + 839 = 50340
Step 61: 50340 + 839 = 51179
Step 62: 51179 + 839 = 52018
Step 63: 52018 + 839 = 52857
Step 64: 52857 + 839 = 53696
Step 65: 53696 + 839 = 54535
Step 66: 54535 + 839 = 55374
Step 67: 55374 + 839 = 56213
Step 68: 56213 + 839 = 57052
Step 69: 57052 + 839 = 57891
Step 70: 57891 + 839 = 58730
Step 71: 58730 + 839 = 59569
Step 72: 59569 + 839 = 60408
Step 73: 60408 + 839 = 61247
Step 74: 61247 + 839 = 62086
Step 75: 62086 + 839 = 62925
Step 76: 62925 + 839 = 63764
Step 77: 63764 + 839 = 64603
Step 78: 64603 + 839 = 65442
Step 79: 65442 + 839 = 66281
Step 80: 66281 + 839 = 67120
Step 81: 67120 + 839 = 67959
Step 82: 67959 + 839 = 68798
Step 83: 68798 + 839 = 69637
Step 84: 69637 + 839 = 70476
Step 85: 70476 + 839 = 71315
Step 86: 71315 + 839 = 72154
Step 87: 72154 + 839 = 72993
Step 88: 72993 + 839 = 73832
Step 89: 73832 + 839 = 74671
Step 90: 74671 + 839 = 75510
Step 91: 75510 + 839 = 76349
Step 92: 76349 + 839 = 77188
Step 93: 77188 + 839 = 78027
Step 94: 78027 + 839 = 78866
Step 95: 78866 + 839 = 79705
Step 96: 79705 + 839 = 80544
Step 97: 80544 + 839 = 81383
Step 98: 81383 + 839 = 82222
Step 99: 82222 + 839 = 83061
Step 100: 83061 + 839 = 83900
Step 101: 83900 + 839 = 84739
Step 102: 84739 + 839 = 85578
Step 103: 85578 + 839 = 86417
Step 104: 86417 + 839 = 87256
Step 105: 87256 + 839 = 88095
Step 106: 88095 + 839 = 88934
Step 107: 88934 + 839 = 89773
Step 108: 89773 + 839 = 90612
Step 109: 90612 + 839 = 91451
Step 110: 91451 + 839 = 92290
Step 111: 92290 + 839 = 93129
Step 112: 93129 + 839 = 93968
Step 113: 93968 + 839 = 94807
Step 114: 94807 + 839 = 95646
Step 115: 95646 + 839 = 96485
Step 116: 96485 + 839 = 97324
Step 117: 97324 + 839 = 98163
Step 118: 98163 + 839 = 99002
Step 119: 99002 + 839 = 99841
Step 120: 99841 + 839 = 100680
Step 121: 100680 + 839 = 101519
Step 122: 101519 + 839 = 102358
Step 123: 102358 + 839 = 103197
Step 124: 103197 + 839 = 104036
Step 125: 104036 + 839 = 104875
Step 126: 104875 + 839 = 105714
Step 127: 105714 + 839 = 106553
Step 128: 106553 + 839 = 107392
Step 129: 107392 + 839 = 108231
Step 130: 108231 + 839 = 109070
Step 131: 109070 + 839 = 109909
Step 132: 109909 + 839 = 110748
Step 133: 110748 + 839 = 111587
Step 134: 111587 + 839 = 112426
Step 135: 112426 + 839 = 113265
Step 136: 113265 + 839 = 114104
Step 137: 114104 + 839 = 114943
Step 138: 114943 + 839 = 115782
Step 139: 115782 + 839 = 116621
Step 140: 116621 + 839 = 117460
Step 141: 117460 + 839 = 118299
Step 142: 118299 + 839 = 119138
Step 143: 119138 + 839 = 119977
Step 144: 119977 + 839 = 120816
Step 145: 120816 + 839 = 121655
Step 146: 121655 + 839 = 122494
Step 147: 122494 + 839 = 123333
Step 148: 123333 + 839 = 124172
Step 149: 124172 + 839 = 125011
Step 150: 125011 + 839 = 125850
Step 151: 125850 + 839 = 126689
Step 152: 126689 + 839 = 127528
Step 153: 127528 + 839 = 128367
Step 154: 128367 + 839 = 129206
Step 155: 129206 + 839 = 130045
Step 156: 130045 + 839 = 130884
Step 157: 130884 + 839 = 131723
Step 158: 131723 + 839 = 132562
Step 159: 132562 + 839 = 133401
Step 160: 133401 + 839 = 134240
Step 161: 134240 + 839 = 135079
Step 162: 135079 + 839 = 135918
Step 163: 135918 + 839 = 136757
Step 164: 136757 + 839 = 137596
Step 165: 137596 + 839 = 138435
Step 166: 138435 + 839 = 139274
Step 167: 139274 + 839 = 140113
Step 168: 140113 + 839 = 140952
Step 169: 140952 + 839 = 141791
Step 170: 141791 + 839 = 142630
Step 171: 142630 + 839 = 143469
Step 172: 143469 + 839 = 144308
Step 173: 144308 + 839 = 145147
Step 174: 145147 + 839 = 145986
Step 175: 145986 + 839 = 146825
Step 176: 146825 + 839 = 147664
Step 177: 147664 + 839 = 148503
Step 178: 148503 + 839 = 149342
Step 179: 149342 + 839 = 150181
Step 180: 150181 + 839 = 151020
Step 181: 151020 + 839 = 151859
Step 182: 151859 + 839 = 152698
Step 183: 152698 + 839 = 153537
Step 184: 153537 + 839 = 154376
Step 185: 154376 + 839 = 155215
Step 186: 155215 + 839 = 156054
Step 187: 156054 + 839 = 156893
Step 188: 156893 + 839 = 157732
Step 189: 157732 + 839 = 158571
Step 190: 158571 + 839 = 159410
Step 191: 159410 + 839 = 160249
Step 192: 160249 + 839 = 161088
Step 193: 161088 + 839 = 161927
Step 194: 161927 + 839 = 162766
Step 195: 162766 + 839 = 163605
Step 196: 163605 + 839 = 164444
Step 197: 164444 + 839 = 165283
Step 198: 165283 + 839 = 166122
Step 199: 166122 + 839 = 166961
Step 200: 166961 + 839 = 167800
Step 201: 167800 + 839 = 168639
Step 202: 168639 + 839 = 169478
Step 203: 169478 + 839 = 170317
Step 204: 170317 + 839 = 171156
Step 205: 171156 + 839 = 171995
Step 206: 171995 + 839 = 172834
Step 207: 172834 + 839 = 173673
Step 208: 173673 + 839 = 174512
Step 209: 174512 + 839 = 175351
Step 210: 175351 + 839 = 176190
Step 211: 176190 + 839 = 177029
Step 212: 177029 + 839 = 177868
Step 213: 177868 + 839 = 178707
Step 214: 178707 + 839 = 179546
Step 215: 179546 + 839 = 180385
Step 216: 180385 + 839 = 181224
Step 217: 181224 + 839 = 182063
Step 218: 182063 + 839 = 182902
Step 219: 182902 + 839 = 183741
Step 220: 183741 + 839 = 184580
Step 221: 184580 + 839 = 185419
Step 222: 185419 + 839 = 186258
Step 223: 186258 + 839 = 187097
Step 224: 187097 + 839 = 187936
Step 225: 187936 + 839 = 188775
Step 226: 188775 + 839 = 189614
Step 227: 189614 + 839 = 190453
Step 228: 190453 + 839 = 191292
Step 229: 191292 + 839 = 192131
Step 230: 192131 + 839 = 192970
Step 231: 192970 + 839 = 193809
Step 232: 193809 + 839 = 194648
Step 233: 194648 + 839 = 195487
Step 234: 195487 + 839 = 196326
Step 235: 196326 + 839 = 197165
Step 236: 197165 + 839 = 198004
Step 237: 198004 + 839 = 198843
Step 238: 198843 + 839 = 199682
Step 239: 199682 + 839 = 200521
Step 240: 200521 + 839 = 201360
Step 241: 201360 + 839 = 202199
Step 242: 202199 + 839 = 203038
Step 243: 203038 + 839 = 203877
Step 244: 203877 + 839 = 204716
Step 245: 204716 + 839 = 205555
Step 246: 205555 + 839 = 206394
Step 247: 206394 + 839 = 207233
Step 248: 207233 + 839 = 208072
Step 249: 208072 + 839 = 208911
Step 250: 208911 + 839 = 209750
Step 251: 209750 + 839 = 210589
Step 252: 210589 + 839 = 211428
Step 253: 211428 + 839 = 212267
Step 254: 212267 + 839 = 213106
Step 255: 213106 + 839 = 213945
Step 256: 213945 + 839 = 214784
Step 257: 214784 + 839 = 215623
Step 258: 215623 + 839 = 216462
Step 259: 216462 + 839 = 217301
Step 260: 217301 + 839 = 218140
Step 261: 218140 + 839 = 218979
Step 262: 218979 + 839 = 219818
Step 263: 219818 + 839 = 220657
Step 264: 220657 + 839 = 221496
Step 265: 221496 + 839 = 222335
Step 266: 222335 + 839 = 223174
Step 267: 223174 + 839 = 224013
Step 268: 224013 + 839 = 224852
Step 269: 224852 + 839 = 225691
Step 270: 225691 + 839 = 226530
Step 271: 226530 + 839 = 227369
Step 272: 227369 + 839 = 228208
Step 273: 228208 + 839 = 229047
Step 274: 229047 + 839 = 229886
Step 275: 229886 + 839 = 230725
Step 276: 230725 + 839 = 231564
Step 277: 231564 + 839 = 232403
Step 278: 232403 + 839 = 233242
Step 279: 233242 + 839 = 234081
Step 280: 234081 + 839 = 234920
Step 281: 234920 + 839 = 235759
Step 282: 235759 + 839 = 236598
Step 283: 236598 + 839 = 237437
Step 284: 237437 + 839 = 238276
Step 285: 238276 + 839 = 239115
Step 286: 239115 + 839 = 239954
Step 287: 239954 + 839 = 240793
Step 288: 240793 + 839 = 241632
Step 289: 241632 + 839 = 242471
Step 290: 242471 + 839 = 243310
Step 291: 243310 + 839 = 244149
Step 292: 244149 + 839 = 244988
Step 293: 244988 + 839 = 245827
Step 294: 245827 + 839 = 246666
Step 295: 246666 + 839 = 247505
Step 296: 247505 + 839 = 248344
Step 297: 248344 + 839 = 249183
Step 298: 249183 + 839 = 250022
Step 299: 250022 + 839 = 250861
Step 300: 250861 + 839 = 251700
Step 301: 251700 + 839 = 252539
Step 302: 252539 + 839 = 253378
Step 303: 253378 + 839 = 254217
Step 304: 254217 + 839 = 255056
Step 305: 255056 + 839 = 255895
Step 306: 255895 + 839 = 256734
Step 307: 256734 + 839 = 257573
Step 308: 257573 + 839 = 258412
Step 309: 258412 + 839 = 259251
Step 310: 259251 + 839 = 260090
Step 311: 260090 + 839 = 260929
Step 312: 260929 + 839 = 261768
Step 313: 261768 + 839 = 262607
Step 314: 262607 + 839 = 263446
Step 315: 263446 + 839 = 264285
Step 316: 264285 + 839 = 265124
Step 317: 265124 + 839 = 265963
Step 318: 265963 + 839 = 266802
Step 319: 266802 + 839 = 267641
Step 320: 267641 + 839 = 268480
Step 321: 268480 + 839 = 269319
Step 322: 269319 + 839 = 270158
Step 323: 270158 + 839 = 270997
Step 324: 270997 + 839 = 271836
Step 325: 271836 + 839 = 272675
Step 326: 272675 + 839 = 273514
Step 327: 273514 + 839 = 274353
Step 328: 274353 + 839 = 275192
Step 329: 275192 + 839 = 276031
Step 330: 276031 + 839 = 276870
Step 331: 276870 + 839 = 277709
Step 332: 277709 + 839 = 278548
Step 333: 278548 + 839 = 279387
Step 334: 279387 + 839 = 280226
Step 335: 280226 + 839 = 281065
Step 336: 281065 + 839 = 281904
Step 337: 281904 + 839 = 282743
Step 338: 282743 + 839 = 283582
Step 339: 283582 + 839 = 284421
Step 340: 284421 + 839 = 285260
Step 341: 285260 + 839 = 286099
Step 342: 286099 + 839 = 286938
Step 343: 286938 + 839 = 287777
Step 344: 287777 + 839 = 288616
Step 345: 288616 + 839 = 289455
Step 346: 289455 + 839 = 290294
Step 347: 290294 + 839 = 291133
Step 348: 291133 + 839 = 291972
Step 349: 291972 + 839 = 292811
Step 350: 292811 + 839 = 293650
Step 351: 293650 + 839 = 294489
Step 352: 294489 + 839 = 295328
Step 353: 295328 + 839 = 296167
Step 354: 296167 + 839 = 297006
Step 355: 297006 + 839 = 297845
Step 356: 297845 + 839 = 298684
Step 357: 298684 + 839 = 299523
Step 358: 299523 + 839 = 300362
Step 359: 300362 + 839 = 301201
Step 360: 301201 + 839 = 302040
Step 361: 302040 + 839 = 302879
Step 362: 302879 + 839 = 303718
Step 363: 303718 + 839 = 304557
Step 364: 304557 + 839 = 305396
Step 365: 305396 + 839 = 306235
Step 366: 306235 + 839 = 307074
Step 367: 307074 + 839 = 307913
Step 368: 307913 + 839 = 308752
Step 369: 308752 + 839 = 309591
Step 370: 309591 + 839 = 310430
Step 371: 310430 + 839 = 311269
Step 372: 311269 + 839 = 312108
Step 373: 312108 + 839 = 312947
Step 374: 312947 + 839 = 313786
Step 375: 313786 + 839 = 314625
Step 376: 314625 + 839 = 315464
Step 377: 315464 + 839 = 316303
Step 378: 316303 + 839 = 317142
Step 379: 317142 + 839 = 317981
Step 380: 317981 + 839 = 318820
Step 381: 318820 + 839 = 319659
Step 382: 319659 + 839 = 320498
Step 383: 320498 + 839 = 321337
Step 384: 321337 + 839 = 322176
Step 385: 322176 + 839 = 323015
Step 386: 323015 + 839 = 323854
Step 387: 323854 + 839 = 324693
Step 388: 324693 + 839 = 325532
Step 389: 325532 + 839 = 326371
Step 390: 326371 + 839 = 327210
Step 391: 327210 + 839 = 328049
Step 392: 328049 + 839 = 328888
Step 393: 328888 + 839 = 329727
Step 394: 329727 + 839 = 330566
Step 395: 330566 + 839 = 331405
Step 396: 331405 + 839 = 332244
Step 397: 332244 + 839 = 333083
Step 398: 333083 + 839 = 333922
Step 399: 333922 + 839 = 334761
Step 400: 334761 + 839 = 335600
Step 401: 335600 + 839 = 336439
Step 402: 336439 + 839 = 337278
Step 403: 337278 + 839 = 338117
Step 404: 338117 + 839 = 338956
Step 405: 338956 + 839 = 339795
Step 406: 339795 + 839 = 340634
Step 407: 340634 + 839 = 341473
Step 408: 341473 + 839 = 342312
Step 409: 342312 + 839 = 343151
Step 410: 343151 + 839 = 343990
Step 411: 343990 + 839 = 344829
Step 412: 344829 + 839 = 345668
Step 413: 345668 + 839 = 346507
Step 414: 346507 + 839 = 347346
Step 415: 347346 + 839 = 348185
Step 416: 348185 + 839 = 349024
Step 417: 349024 + 839 = 349863
Step 418: 349863 + 839 = 350702
Step 419: 350702 + 839 = 351541
Step 420: 351541 + 839 = 352380
Step 421: 352380 + 839 = 353219
Step 422: 353219 + 839 = 354058
Step 423: 354058 + 839 = 354897
Step 424: 354897 + 839 = 355736
Step 425: 355736 + 839 = 356575
Step 426: 356575 + 839 = 357414
Step 427: 357414 + 839 = 358253
Step 428: 358253 + 839 = 359092
Step 429: 359092 + 839 = 359931
Step 430: 359931 + 839 = 360770
Step 431: 360770 + 839 = 361609
Step 432: 361609 + 839 = 362448
Step 433: 362448 + 839 = 363287
Step 434: 363287 + 839 = 364126
Step 435: 364126 + 839 = 364965
Step 436: 364965 + 839 = 365804
Step 437: 365804 + 839 = 366643
Step 438: 366643 + 839 = 367482
Step 439: 367482 + 839 = 368321
Step 440: 368321 + 839 = 369160

So, 839*440 = 369160