Let's get this math done. We have 649 and we're going to multiply it by 108. This is the same as taking 649 and adding it to itself 108 times.
Step 1: 0 + 649 = 649
Step 2: 649 + 649 = 1298
Step 3: 1298 + 649 = 1947
Step 4: 1947 + 649 = 2596
Step 5: 2596 + 649 = 3245
Step 6: 3245 + 649 = 3894
Step 7: 3894 + 649 = 4543
Step 8: 4543 + 649 = 5192
Step 9: 5192 + 649 = 5841
Step 10: 5841 + 649 = 6490
Step 11: 6490 + 649 = 7139
Step 12: 7139 + 649 = 7788
Step 13: 7788 + 649 = 8437
Step 14: 8437 + 649 = 9086
Step 15: 9086 + 649 = 9735
Step 16: 9735 + 649 = 10384
Step 17: 10384 + 649 = 11033
Step 18: 11033 + 649 = 11682
Step 19: 11682 + 649 = 12331
Step 20: 12331 + 649 = 12980
Step 21: 12980 + 649 = 13629
Step 22: 13629 + 649 = 14278
Step 23: 14278 + 649 = 14927
Step 24: 14927 + 649 = 15576
Step 25: 15576 + 649 = 16225
Step 26: 16225 + 649 = 16874
Step 27: 16874 + 649 = 17523
Step 28: 17523 + 649 = 18172
Step 29: 18172 + 649 = 18821
Step 30: 18821 + 649 = 19470
Step 31: 19470 + 649 = 20119
Step 32: 20119 + 649 = 20768
Step 33: 20768 + 649 = 21417
Step 34: 21417 + 649 = 22066
Step 35: 22066 + 649 = 22715
Step 36: 22715 + 649 = 23364
Step 37: 23364 + 649 = 24013
Step 38: 24013 + 649 = 24662
Step 39: 24662 + 649 = 25311
Step 40: 25311 + 649 = 25960
Step 41: 25960 + 649 = 26609
Step 42: 26609 + 649 = 27258
Step 43: 27258 + 649 = 27907
Step 44: 27907 + 649 = 28556
Step 45: 28556 + 649 = 29205
Step 46: 29205 + 649 = 29854
Step 47: 29854 + 649 = 30503
Step 48: 30503 + 649 = 31152
Step 49: 31152 + 649 = 31801
Step 50: 31801 + 649 = 32450
Step 51: 32450 + 649 = 33099
Step 52: 33099 + 649 = 33748
Step 53: 33748 + 649 = 34397
Step 54: 34397 + 649 = 35046
Step 55: 35046 + 649 = 35695
Step 56: 35695 + 649 = 36344
Step 57: 36344 + 649 = 36993
Step 58: 36993 + 649 = 37642
Step 59: 37642 + 649 = 38291
Step 60: 38291 + 649 = 38940
Step 61: 38940 + 649 = 39589
Step 62: 39589 + 649 = 40238
Step 63: 40238 + 649 = 40887
Step 64: 40887 + 649 = 41536
Step 65: 41536 + 649 = 42185
Step 66: 42185 + 649 = 42834
Step 67: 42834 + 649 = 43483
Step 68: 43483 + 649 = 44132
Step 69: 44132 + 649 = 44781
Step 70: 44781 + 649 = 45430
Step 71: 45430 + 649 = 46079
Step 72: 46079 + 649 = 46728
Step 73: 46728 + 649 = 47377
Step 74: 47377 + 649 = 48026
Step 75: 48026 + 649 = 48675
Step 76: 48675 + 649 = 49324
Step 77: 49324 + 649 = 49973
Step 78: 49973 + 649 = 50622
Step 79: 50622 + 649 = 51271
Step 80: 51271 + 649 = 51920
Step 81: 51920 + 649 = 52569
Step 82: 52569 + 649 = 53218
Step 83: 53218 + 649 = 53867
Step 84: 53867 + 649 = 54516
Step 85: 54516 + 649 = 55165
Step 86: 55165 + 649 = 55814
Step 87: 55814 + 649 = 56463
Step 88: 56463 + 649 = 57112
Step 89: 57112 + 649 = 57761
Step 90: 57761 + 649 = 58410
Step 91: 58410 + 649 = 59059
Step 92: 59059 + 649 = 59708
Step 93: 59708 + 649 = 60357
Step 94: 60357 + 649 = 61006
Step 95: 61006 + 649 = 61655
Step 96: 61655 + 649 = 62304
Step 97: 62304 + 649 = 62953
Step 98: 62953 + 649 = 63602
Step 99: 63602 + 649 = 64251
Step 100: 64251 + 649 = 64900
Step 101: 64900 + 649 = 65549
Step 102: 65549 + 649 = 66198
Step 103: 66198 + 649 = 66847
Step 104: 66847 + 649 = 67496
Step 105: 67496 + 649 = 68145
Step 106: 68145 + 649 = 68794
Step 107: 68794 + 649 = 69443
Step 108: 69443 + 649 = 70092

So, 649*108 = 70092