Sure thing, let's get straight to it. We start with 626 and we're going to multiply it by 87, which means adding 626 to itself 87 times.
Step 1: 0 + 626 = 626
Step 2: 626 + 626 = 1252
Step 3: 1252 + 626 = 1878
Step 4: 1878 + 626 = 2504
Step 5: 2504 + 626 = 3130
Step 6: 3130 + 626 = 3756
Step 7: 3756 + 626 = 4382
Step 8: 4382 + 626 = 5008
Step 9: 5008 + 626 = 5634
Step 10: 5634 + 626 = 6260
Step 11: 6260 + 626 = 6886
Step 12: 6886 + 626 = 7512
Step 13: 7512 + 626 = 8138
Step 14: 8138 + 626 = 8764
Step 15: 8764 + 626 = 9390
Step 16: 9390 + 626 = 10016
Step 17: 10016 + 626 = 10642
Step 18: 10642 + 626 = 11268
Step 19: 11268 + 626 = 11894
Step 20: 11894 + 626 = 12520
Step 21: 12520 + 626 = 13146
Step 22: 13146 + 626 = 13772
Step 23: 13772 + 626 = 14398
Step 24: 14398 + 626 = 15024
Step 25: 15024 + 626 = 15650
Step 26: 15650 + 626 = 16276
Step 27: 16276 + 626 = 16902
Step 28: 16902 + 626 = 17528
Step 29: 17528 + 626 = 18154
Step 30: 18154 + 626 = 18780
Step 31: 18780 + 626 = 19406
Step 32: 19406 + 626 = 20032
Step 33: 20032 + 626 = 20658
Step 34: 20658 + 626 = 21284
Step 35: 21284 + 626 = 21910
Step 36: 21910 + 626 = 22536
Step 37: 22536 + 626 = 23162
Step 38: 23162 + 626 = 23788
Step 39: 23788 + 626 = 24414
Step 40: 24414 + 626 = 25040
Step 41: 25040 + 626 = 25666
Step 42: 25666 + 626 = 26292
Step 43: 26292 + 626 = 26918
Step 44: 26918 + 626 = 27544
Step 45: 27544 + 626 = 28170
Step 46: 28170 + 626 = 28796
Step 47: 28796 + 626 = 29422
Step 48: 29422 + 626 = 30048
Step 49: 30048 + 626 = 30674
Step 50: 30674 + 626 = 31300
Step 51: 31300 + 626 = 31926
Step 52: 31926 + 626 = 32552
Step 53: 32552 + 626 = 33178
Step 54: 33178 + 626 = 33804
Step 55: 33804 + 626 = 34430
Step 56: 34430 + 626 = 35056
Step 57: 35056 + 626 = 35682
Step 58: 35682 + 626 = 36308
Step 59: 36308 + 626 = 36934
Step 60: 36934 + 626 = 37560
Step 61: 37560 + 626 = 38186
Step 62: 38186 + 626 = 38812
Step 63: 38812 + 626 = 39438
Step 64: 39438 + 626 = 40064
Step 65: 40064 + 626 = 40690
Step 66: 40690 + 626 = 41316
Step 67: 41316 + 626 = 41942
Step 68: 41942 + 626 = 42568
Step 69: 42568 + 626 = 43194
Step 70: 43194 + 626 = 43820
Step 71: 43820 + 626 = 44446
Step 72: 44446 + 626 = 45072
Step 73: 45072 + 626 = 45698
Step 74: 45698 + 626 = 46324
Step 75: 46324 + 626 = 46950
Step 76: 46950 + 626 = 47576
Step 77: 47576 + 626 = 48202
Step 78: 48202 + 626 = 48828
Step 79: 48828 + 626 = 49454
Step 80: 49454 + 626 = 50080
Step 81: 50080 + 626 = 50706
Step 82: 50706 + 626 = 51332
Step 83: 51332 + 626 = 51958
Step 84: 51958 + 626 = 52584
Step 85: 52584 + 626 = 53210
Step 86: 53210 + 626 = 53836
Step 87: 53836 + 626 = 54462

So, 626*87 = 54462