OK, let's crack this. We're given 907 and our task is to multiply it by 479. Essentially, we'll be adding 907 to itself 479 times.
Step 1: 0 + 907 = 907
Step 2: 907 + 907 = 1814
Step 3: 1814 + 907 = 2721
Step 4: 2721 + 907 = 3628
Step 5: 3628 + 907 = 4535
Step 6: 4535 + 907 = 5442
Step 7: 5442 + 907 = 6349
Step 8: 6349 + 907 = 7256
Step 9: 7256 + 907 = 8163
Step 10: 8163 + 907 = 9070
Step 11: 9070 + 907 = 9977
Step 12: 9977 + 907 = 10884
Step 13: 10884 + 907 = 11791
Step 14: 11791 + 907 = 12698
Step 15: 12698 + 907 = 13605
Step 16: 13605 + 907 = 14512
Step 17: 14512 + 907 = 15419
Step 18: 15419 + 907 = 16326
Step 19: 16326 + 907 = 17233
Step 20: 17233 + 907 = 18140
Step 21: 18140 + 907 = 19047
Step 22: 19047 + 907 = 19954
Step 23: 19954 + 907 = 20861
Step 24: 20861 + 907 = 21768
Step 25: 21768 + 907 = 22675
Step 26: 22675 + 907 = 23582
Step 27: 23582 + 907 = 24489
Step 28: 24489 + 907 = 25396
Step 29: 25396 + 907 = 26303
Step 30: 26303 + 907 = 27210
Step 31: 27210 + 907 = 28117
Step 32: 28117 + 907 = 29024
Step 33: 29024 + 907 = 29931
Step 34: 29931 + 907 = 30838
Step 35: 30838 + 907 = 31745
Step 36: 31745 + 907 = 32652
Step 37: 32652 + 907 = 33559
Step 38: 33559 + 907 = 34466
Step 39: 34466 + 907 = 35373
Step 40: 35373 + 907 = 36280
Step 41: 36280 + 907 = 37187
Step 42: 37187 + 907 = 38094
Step 43: 38094 + 907 = 39001
Step 44: 39001 + 907 = 39908
Step 45: 39908 + 907 = 40815
Step 46: 40815 + 907 = 41722
Step 47: 41722 + 907 = 42629
Step 48: 42629 + 907 = 43536
Step 49: 43536 + 907 = 44443
Step 50: 44443 + 907 = 45350
Step 51: 45350 + 907 = 46257
Step 52: 46257 + 907 = 47164
Step 53: 47164 + 907 = 48071
Step 54: 48071 + 907 = 48978
Step 55: 48978 + 907 = 49885
Step 56: 49885 + 907 = 50792
Step 57: 50792 + 907 = 51699
Step 58: 51699 + 907 = 52606
Step 59: 52606 + 907 = 53513
Step 60: 53513 + 907 = 54420
Step 61: 54420 + 907 = 55327
Step 62: 55327 + 907 = 56234
Step 63: 56234 + 907 = 57141
Step 64: 57141 + 907 = 58048
Step 65: 58048 + 907 = 58955
Step 66: 58955 + 907 = 59862
Step 67: 59862 + 907 = 60769
Step 68: 60769 + 907 = 61676
Step 69: 61676 + 907 = 62583
Step 70: 62583 + 907 = 63490
Step 71: 63490 + 907 = 64397
Step 72: 64397 + 907 = 65304
Step 73: 65304 + 907 = 66211
Step 74: 66211 + 907 = 67118
Step 75: 67118 + 907 = 68025
Step 76: 68025 + 907 = 68932
Step 77: 68932 + 907 = 69839
Step 78: 69839 + 907 = 70746
Step 79: 70746 + 907 = 71653
Step 80: 71653 + 907 = 72560
Step 81: 72560 + 907 = 73467
Step 82: 73467 + 907 = 74374
Step 83: 74374 + 907 = 75281
Step 84: 75281 + 907 = 76188
Step 85: 76188 + 907 = 77095
Step 86: 77095 + 907 = 78002
Step 87: 78002 + 907 = 78909
Step 88: 78909 + 907 = 79816
Step 89: 79816 + 907 = 80723
Step 90: 80723 + 907 = 81630
Step 91: 81630 + 907 = 82537
Step 92: 82537 + 907 = 83444
Step 93: 83444 + 907 = 84351
Step 94: 84351 + 907 = 85258
Step 95: 85258 + 907 = 86165
Step 96: 86165 + 907 = 87072
Step 97: 87072 + 907 = 87979
Step 98: 87979 + 907 = 88886
Step 99: 88886 + 907 = 89793
Step 100: 89793 + 907 = 90700
Step 101: 90700 + 907 = 91607
Step 102: 91607 + 907 = 92514
Step 103: 92514 + 907 = 93421
Step 104: 93421 + 907 = 94328
Step 105: 94328 + 907 = 95235
Step 106: 95235 + 907 = 96142
Step 107: 96142 + 907 = 97049
Step 108: 97049 + 907 = 97956
Step 109: 97956 + 907 = 98863
Step 110: 98863 + 907 = 99770
Step 111: 99770 + 907 = 100677
Step 112: 100677 + 907 = 101584
Step 113: 101584 + 907 = 102491
Step 114: 102491 + 907 = 103398
Step 115: 103398 + 907 = 104305
Step 116: 104305 + 907 = 105212
Step 117: 105212 + 907 = 106119
Step 118: 106119 + 907 = 107026
Step 119: 107026 + 907 = 107933
Step 120: 107933 + 907 = 108840
Step 121: 108840 + 907 = 109747
Step 122: 109747 + 907 = 110654
Step 123: 110654 + 907 = 111561
Step 124: 111561 + 907 = 112468
Step 125: 112468 + 907 = 113375
Step 126: 113375 + 907 = 114282
Step 127: 114282 + 907 = 115189
Step 128: 115189 + 907 = 116096
Step 129: 116096 + 907 = 117003
Step 130: 117003 + 907 = 117910
Step 131: 117910 + 907 = 118817
Step 132: 118817 + 907 = 119724
Step 133: 119724 + 907 = 120631
Step 134: 120631 + 907 = 121538
Step 135: 121538 + 907 = 122445
Step 136: 122445 + 907 = 123352
Step 137: 123352 + 907 = 124259
Step 138: 124259 + 907 = 125166
Step 139: 125166 + 907 = 126073
Step 140: 126073 + 907 = 126980
Step 141: 126980 + 907 = 127887
Step 142: 127887 + 907 = 128794
Step 143: 128794 + 907 = 129701
Step 144: 129701 + 907 = 130608
Step 145: 130608 + 907 = 131515
Step 146: 131515 + 907 = 132422
Step 147: 132422 + 907 = 133329
Step 148: 133329 + 907 = 134236
Step 149: 134236 + 907 = 135143
Step 150: 135143 + 907 = 136050
Step 151: 136050 + 907 = 136957
Step 152: 136957 + 907 = 137864
Step 153: 137864 + 907 = 138771
Step 154: 138771 + 907 = 139678
Step 155: 139678 + 907 = 140585
Step 156: 140585 + 907 = 141492
Step 157: 141492 + 907 = 142399
Step 158: 142399 + 907 = 143306
Step 159: 143306 + 907 = 144213
Step 160: 144213 + 907 = 145120
Step 161: 145120 + 907 = 146027
Step 162: 146027 + 907 = 146934
Step 163: 146934 + 907 = 147841
Step 164: 147841 + 907 = 148748
Step 165: 148748 + 907 = 149655
Step 166: 149655 + 907 = 150562
Step 167: 150562 + 907 = 151469
Step 168: 151469 + 907 = 152376
Step 169: 152376 + 907 = 153283
Step 170: 153283 + 907 = 154190
Step 171: 154190 + 907 = 155097
Step 172: 155097 + 907 = 156004
Step 173: 156004 + 907 = 156911
Step 174: 156911 + 907 = 157818
Step 175: 157818 + 907 = 158725
Step 176: 158725 + 907 = 159632
Step 177: 159632 + 907 = 160539
Step 178: 160539 + 907 = 161446
Step 179: 161446 + 907 = 162353
Step 180: 162353 + 907 = 163260
Step 181: 163260 + 907 = 164167
Step 182: 164167 + 907 = 165074
Step 183: 165074 + 907 = 165981
Step 184: 165981 + 907 = 166888
Step 185: 166888 + 907 = 167795
Step 186: 167795 + 907 = 168702
Step 187: 168702 + 907 = 169609
Step 188: 169609 + 907 = 170516
Step 189: 170516 + 907 = 171423
Step 190: 171423 + 907 = 172330
Step 191: 172330 + 907 = 173237
Step 192: 173237 + 907 = 174144
Step 193: 174144 + 907 = 175051
Step 194: 175051 + 907 = 175958
Step 195: 175958 + 907 = 176865
Step 196: 176865 + 907 = 177772
Step 197: 177772 + 907 = 178679
Step 198: 178679 + 907 = 179586
Step 199: 179586 + 907 = 180493
Step 200: 180493 + 907 = 181400
Step 201: 181400 + 907 = 182307
Step 202: 182307 + 907 = 183214
Step 203: 183214 + 907 = 184121
Step 204: 184121 + 907 = 185028
Step 205: 185028 + 907 = 185935
Step 206: 185935 + 907 = 186842
Step 207: 186842 + 907 = 187749
Step 208: 187749 + 907 = 188656
Step 209: 188656 + 907 = 189563
Step 210: 189563 + 907 = 190470
Step 211: 190470 + 907 = 191377
Step 212: 191377 + 907 = 192284
Step 213: 192284 + 907 = 193191
Step 214: 193191 + 907 = 194098
Step 215: 194098 + 907 = 195005
Step 216: 195005 + 907 = 195912
Step 217: 195912 + 907 = 196819
Step 218: 196819 + 907 = 197726
Step 219: 197726 + 907 = 198633
Step 220: 198633 + 907 = 199540
Step 221: 199540 + 907 = 200447
Step 222: 200447 + 907 = 201354
Step 223: 201354 + 907 = 202261
Step 224: 202261 + 907 = 203168
Step 225: 203168 + 907 = 204075
Step 226: 204075 + 907 = 204982
Step 227: 204982 + 907 = 205889
Step 228: 205889 + 907 = 206796
Step 229: 206796 + 907 = 207703
Step 230: 207703 + 907 = 208610
Step 231: 208610 + 907 = 209517
Step 232: 209517 + 907 = 210424
Step 233: 210424 + 907 = 211331
Step 234: 211331 + 907 = 212238
Step 235: 212238 + 907 = 213145
Step 236: 213145 + 907 = 214052
Step 237: 214052 + 907 = 214959
Step 238: 214959 + 907 = 215866
Step 239: 215866 + 907 = 216773
Step 240: 216773 + 907 = 217680
Step 241: 217680 + 907 = 218587
Step 242: 218587 + 907 = 219494
Step 243: 219494 + 907 = 220401
Step 244: 220401 + 907 = 221308
Step 245: 221308 + 907 = 222215
Step 246: 222215 + 907 = 223122
Step 247: 223122 + 907 = 224029
Step 248: 224029 + 907 = 224936
Step 249: 224936 + 907 = 225843
Step 250: 225843 + 907 = 226750
Step 251: 226750 + 907 = 227657
Step 252: 227657 + 907 = 228564
Step 253: 228564 + 907 = 229471
Step 254: 229471 + 907 = 230378
Step 255: 230378 + 907 = 231285
Step 256: 231285 + 907 = 232192
Step 257: 232192 + 907 = 233099
Step 258: 233099 + 907 = 234006
Step 259: 234006 + 907 = 234913
Step 260: 234913 + 907 = 235820
Step 261: 235820 + 907 = 236727
Step 262: 236727 + 907 = 237634
Step 263: 237634 + 907 = 238541
Step 264: 238541 + 907 = 239448
Step 265: 239448 + 907 = 240355
Step 266: 240355 + 907 = 241262
Step 267: 241262 + 907 = 242169
Step 268: 242169 + 907 = 243076
Step 269: 243076 + 907 = 243983
Step 270: 243983 + 907 = 244890
Step 271: 244890 + 907 = 245797
Step 272: 245797 + 907 = 246704
Step 273: 246704 + 907 = 247611
Step 274: 247611 + 907 = 248518
Step 275: 248518 + 907 = 249425
Step 276: 249425 + 907 = 250332
Step 277: 250332 + 907 = 251239
Step 278: 251239 + 907 = 252146
Step 279: 252146 + 907 = 253053
Step 280: 253053 + 907 = 253960
Step 281: 253960 + 907 = 254867
Step 282: 254867 + 907 = 255774
Step 283: 255774 + 907 = 256681
Step 284: 256681 + 907 = 257588
Step 285: 257588 + 907 = 258495
Step 286: 258495 + 907 = 259402
Step 287: 259402 + 907 = 260309
Step 288: 260309 + 907 = 261216
Step 289: 261216 + 907 = 262123
Step 290: 262123 + 907 = 263030
Step 291: 263030 + 907 = 263937
Step 292: 263937 + 907 = 264844
Step 293: 264844 + 907 = 265751
Step 294: 265751 + 907 = 266658
Step 295: 266658 + 907 = 267565
Step 296: 267565 + 907 = 268472
Step 297: 268472 + 907 = 269379
Step 298: 269379 + 907 = 270286
Step 299: 270286 + 907 = 271193
Step 300: 271193 + 907 = 272100
Step 301: 272100 + 907 = 273007
Step 302: 273007 + 907 = 273914
Step 303: 273914 + 907 = 274821
Step 304: 274821 + 907 = 275728
Step 305: 275728 + 907 = 276635
Step 306: 276635 + 907 = 277542
Step 307: 277542 + 907 = 278449
Step 308: 278449 + 907 = 279356
Step 309: 279356 + 907 = 280263
Step 310: 280263 + 907 = 281170
Step 311: 281170 + 907 = 282077
Step 312: 282077 + 907 = 282984
Step 313: 282984 + 907 = 283891
Step 314: 283891 + 907 = 284798
Step 315: 284798 + 907 = 285705
Step 316: 285705 + 907 = 286612
Step 317: 286612 + 907 = 287519
Step 318: 287519 + 907 = 288426
Step 319: 288426 + 907 = 289333
Step 320: 289333 + 907 = 290240
Step 321: 290240 + 907 = 291147
Step 322: 291147 + 907 = 292054
Step 323: 292054 + 907 = 292961
Step 324: 292961 + 907 = 293868
Step 325: 293868 + 907 = 294775
Step 326: 294775 + 907 = 295682
Step 327: 295682 + 907 = 296589
Step 328: 296589 + 907 = 297496
Step 329: 297496 + 907 = 298403
Step 330: 298403 + 907 = 299310
Step 331: 299310 + 907 = 300217
Step 332: 300217 + 907 = 301124
Step 333: 301124 + 907 = 302031
Step 334: 302031 + 907 = 302938
Step 335: 302938 + 907 = 303845
Step 336: 303845 + 907 = 304752
Step 337: 304752 + 907 = 305659
Step 338: 305659 + 907 = 306566
Step 339: 306566 + 907 = 307473
Step 340: 307473 + 907 = 308380
Step 341: 308380 + 907 = 309287
Step 342: 309287 + 907 = 310194
Step 343: 310194 + 907 = 311101
Step 344: 311101 + 907 = 312008
Step 345: 312008 + 907 = 312915
Step 346: 312915 + 907 = 313822
Step 347: 313822 + 907 = 314729
Step 348: 314729 + 907 = 315636
Step 349: 315636 + 907 = 316543
Step 350: 316543 + 907 = 317450
Step 351: 317450 + 907 = 318357
Step 352: 318357 + 907 = 319264
Step 353: 319264 + 907 = 320171
Step 354: 320171 + 907 = 321078
Step 355: 321078 + 907 = 321985
Step 356: 321985 + 907 = 322892
Step 357: 322892 + 907 = 323799
Step 358: 323799 + 907 = 324706
Step 359: 324706 + 907 = 325613
Step 360: 325613 + 907 = 326520
Step 361: 326520 + 907 = 327427
Step 362: 327427 + 907 = 328334
Step 363: 328334 + 907 = 329241
Step 364: 329241 + 907 = 330148
Step 365: 330148 + 907 = 331055
Step 366: 331055 + 907 = 331962
Step 367: 331962 + 907 = 332869
Step 368: 332869 + 907 = 333776
Step 369: 333776 + 907 = 334683
Step 370: 334683 + 907 = 335590
Step 371: 335590 + 907 = 336497
Step 372: 336497 + 907 = 337404
Step 373: 337404 + 907 = 338311
Step 374: 338311 + 907 = 339218
Step 375: 339218 + 907 = 340125
Step 376: 340125 + 907 = 341032
Step 377: 341032 + 907 = 341939
Step 378: 341939 + 907 = 342846
Step 379: 342846 + 907 = 343753
Step 380: 343753 + 907 = 344660
Step 381: 344660 + 907 = 345567
Step 382: 345567 + 907 = 346474
Step 383: 346474 + 907 = 347381
Step 384: 347381 + 907 = 348288
Step 385: 348288 + 907 = 349195
Step 386: 349195 + 907 = 350102
Step 387: 350102 + 907 = 351009
Step 388: 351009 + 907 = 351916
Step 389: 351916 + 907 = 352823
Step 390: 352823 + 907 = 353730
Step 391: 353730 + 907 = 354637
Step 392: 354637 + 907 = 355544
Step 393: 355544 + 907 = 356451
Step 394: 356451 + 907 = 357358
Step 395: 357358 + 907 = 358265
Step 396: 358265 + 907 = 359172
Step 397: 359172 + 907 = 360079
Step 398: 360079 + 907 = 360986
Step 399: 360986 + 907 = 361893
Step 400: 361893 + 907 = 362800
Step 401: 362800 + 907 = 363707
Step 402: 363707 + 907 = 364614
Step 403: 364614 + 907 = 365521
Step 404: 365521 + 907 = 366428
Step 405: 366428 + 907 = 367335
Step 406: 367335 + 907 = 368242
Step 407: 368242 + 907 = 369149
Step 408: 369149 + 907 = 370056
Step 409: 370056 + 907 = 370963
Step 410: 370963 + 907 = 371870
Step 411: 371870 + 907 = 372777
Step 412: 372777 + 907 = 373684
Step 413: 373684 + 907 = 374591
Step 414: 374591 + 907 = 375498
Step 415: 375498 + 907 = 376405
Step 416: 376405 + 907 = 377312
Step 417: 377312 + 907 = 378219
Step 418: 378219 + 907 = 379126
Step 419: 379126 + 907 = 380033
Step 420: 380033 + 907 = 380940
Step 421: 380940 + 907 = 381847
Step 422: 381847 + 907 = 382754
Step 423: 382754 + 907 = 383661
Step 424: 383661 + 907 = 384568
Step 425: 384568 + 907 = 385475
Step 426: 385475 + 907 = 386382
Step 427: 386382 + 907 = 387289
Step 428: 387289 + 907 = 388196
Step 429: 388196 + 907 = 389103
Step 430: 389103 + 907 = 390010
Step 431: 390010 + 907 = 390917
Step 432: 390917 + 907 = 391824
Step 433: 391824 + 907 = 392731
Step 434: 392731 + 907 = 393638
Step 435: 393638 + 907 = 394545
Step 436: 394545 + 907 = 395452
Step 437: 395452 + 907 = 396359
Step 438: 396359 + 907 = 397266
Step 439: 397266 + 907 = 398173
Step 440: 398173 + 907 = 399080
Step 441: 399080 + 907 = 399987
Step 442: 399987 + 907 = 400894
Step 443: 400894 + 907 = 401801
Step 444: 401801 + 907 = 402708
Step 445: 402708 + 907 = 403615
Step 446: 403615 + 907 = 404522
Step 447: 404522 + 907 = 405429
Step 448: 405429 + 907 = 406336
Step 449: 406336 + 907 = 407243
Step 450: 407243 + 907 = 408150
Step 451: 408150 + 907 = 409057
Step 452: 409057 + 907 = 409964
Step 453: 409964 + 907 = 410871
Step 454: 410871 + 907 = 411778
Step 455: 411778 + 907 = 412685
Step 456: 412685 + 907 = 413592
Step 457: 413592 + 907 = 414499
Step 458: 414499 + 907 = 415406
Step 459: 415406 + 907 = 416313
Step 460: 416313 + 907 = 417220
Step 461: 417220 + 907 = 418127
Step 462: 418127 + 907 = 419034
Step 463: 419034 + 907 = 419941
Step 464: 419941 + 907 = 420848
Step 465: 420848 + 907 = 421755
Step 466: 421755 + 907 = 422662
Step 467: 422662 + 907 = 423569
Step 468: 423569 + 907 = 424476
Step 469: 424476 + 907 = 425383
Step 470: 425383 + 907 = 426290
Step 471: 426290 + 907 = 427197
Step 472: 427197 + 907 = 428104
Step 473: 428104 + 907 = 429011
Step 474: 429011 + 907 = 429918
Step 475: 429918 + 907 = 430825
Step 476: 430825 + 907 = 431732
Step 477: 431732 + 907 = 432639
Step 478: 432639 + 907 = 433546
Step 479: 433546 + 907 = 434453

So, 907*479 = 434453