Without delay, let's solve this. We've got 657 and we will be multiplying it by 128, that is, adding 657 to itself 128 times.
Step 1: 0 + 657 = 657
Step 2: 657 + 657 = 1314
Step 3: 1314 + 657 = 1971
Step 4: 1971 + 657 = 2628
Step 5: 2628 + 657 = 3285
Step 6: 3285 + 657 = 3942
Step 7: 3942 + 657 = 4599
Step 8: 4599 + 657 = 5256
Step 9: 5256 + 657 = 5913
Step 10: 5913 + 657 = 6570
Step 11: 6570 + 657 = 7227
Step 12: 7227 + 657 = 7884
Step 13: 7884 + 657 = 8541
Step 14: 8541 + 657 = 9198
Step 15: 9198 + 657 = 9855
Step 16: 9855 + 657 = 10512
Step 17: 10512 + 657 = 11169
Step 18: 11169 + 657 = 11826
Step 19: 11826 + 657 = 12483
Step 20: 12483 + 657 = 13140
Step 21: 13140 + 657 = 13797
Step 22: 13797 + 657 = 14454
Step 23: 14454 + 657 = 15111
Step 24: 15111 + 657 = 15768
Step 25: 15768 + 657 = 16425
Step 26: 16425 + 657 = 17082
Step 27: 17082 + 657 = 17739
Step 28: 17739 + 657 = 18396
Step 29: 18396 + 657 = 19053
Step 30: 19053 + 657 = 19710
Step 31: 19710 + 657 = 20367
Step 32: 20367 + 657 = 21024
Step 33: 21024 + 657 = 21681
Step 34: 21681 + 657 = 22338
Step 35: 22338 + 657 = 22995
Step 36: 22995 + 657 = 23652
Step 37: 23652 + 657 = 24309
Step 38: 24309 + 657 = 24966
Step 39: 24966 + 657 = 25623
Step 40: 25623 + 657 = 26280
Step 41: 26280 + 657 = 26937
Step 42: 26937 + 657 = 27594
Step 43: 27594 + 657 = 28251
Step 44: 28251 + 657 = 28908
Step 45: 28908 + 657 = 29565
Step 46: 29565 + 657 = 30222
Step 47: 30222 + 657 = 30879
Step 48: 30879 + 657 = 31536
Step 49: 31536 + 657 = 32193
Step 50: 32193 + 657 = 32850
Step 51: 32850 + 657 = 33507
Step 52: 33507 + 657 = 34164
Step 53: 34164 + 657 = 34821
Step 54: 34821 + 657 = 35478
Step 55: 35478 + 657 = 36135
Step 56: 36135 + 657 = 36792
Step 57: 36792 + 657 = 37449
Step 58: 37449 + 657 = 38106
Step 59: 38106 + 657 = 38763
Step 60: 38763 + 657 = 39420
Step 61: 39420 + 657 = 40077
Step 62: 40077 + 657 = 40734
Step 63: 40734 + 657 = 41391
Step 64: 41391 + 657 = 42048
Step 65: 42048 + 657 = 42705
Step 66: 42705 + 657 = 43362
Step 67: 43362 + 657 = 44019
Step 68: 44019 + 657 = 44676
Step 69: 44676 + 657 = 45333
Step 70: 45333 + 657 = 45990
Step 71: 45990 + 657 = 46647
Step 72: 46647 + 657 = 47304
Step 73: 47304 + 657 = 47961
Step 74: 47961 + 657 = 48618
Step 75: 48618 + 657 = 49275
Step 76: 49275 + 657 = 49932
Step 77: 49932 + 657 = 50589
Step 78: 50589 + 657 = 51246
Step 79: 51246 + 657 = 51903
Step 80: 51903 + 657 = 52560
Step 81: 52560 + 657 = 53217
Step 82: 53217 + 657 = 53874
Step 83: 53874 + 657 = 54531
Step 84: 54531 + 657 = 55188
Step 85: 55188 + 657 = 55845
Step 86: 55845 + 657 = 56502
Step 87: 56502 + 657 = 57159
Step 88: 57159 + 657 = 57816
Step 89: 57816 + 657 = 58473
Step 90: 58473 + 657 = 59130
Step 91: 59130 + 657 = 59787
Step 92: 59787 + 657 = 60444
Step 93: 60444 + 657 = 61101
Step 94: 61101 + 657 = 61758
Step 95: 61758 + 657 = 62415
Step 96: 62415 + 657 = 63072
Step 97: 63072 + 657 = 63729
Step 98: 63729 + 657 = 64386
Step 99: 64386 + 657 = 65043
Step 100: 65043 + 657 = 65700
Step 101: 65700 + 657 = 66357
Step 102: 66357 + 657 = 67014
Step 103: 67014 + 657 = 67671
Step 104: 67671 + 657 = 68328
Step 105: 68328 + 657 = 68985
Step 106: 68985 + 657 = 69642
Step 107: 69642 + 657 = 70299
Step 108: 70299 + 657 = 70956
Step 109: 70956 + 657 = 71613
Step 110: 71613 + 657 = 72270
Step 111: 72270 + 657 = 72927
Step 112: 72927 + 657 = 73584
Step 113: 73584 + 657 = 74241
Step 114: 74241 + 657 = 74898
Step 115: 74898 + 657 = 75555
Step 116: 75555 + 657 = 76212
Step 117: 76212 + 657 = 76869
Step 118: 76869 + 657 = 77526
Step 119: 77526 + 657 = 78183
Step 120: 78183 + 657 = 78840
Step 121: 78840 + 657 = 79497
Step 122: 79497 + 657 = 80154
Step 123: 80154 + 657 = 80811
Step 124: 80811 + 657 = 81468
Step 125: 81468 + 657 = 82125
Step 126: 82125 + 657 = 82782
Step 127: 82782 + 657 = 83439
Step 128: 83439 + 657 = 84096

So, 657*128 = 84096