OK, let's crack this. We're given 627 and our task is to multiply it by 102. Essentially, we'll be adding 627 to itself 102 times.
Step 1: 0 + 627 = 627
Step 2: 627 + 627 = 1254
Step 3: 1254 + 627 = 1881
Step 4: 1881 + 627 = 2508
Step 5: 2508 + 627 = 3135
Step 6: 3135 + 627 = 3762
Step 7: 3762 + 627 = 4389
Step 8: 4389 + 627 = 5016
Step 9: 5016 + 627 = 5643
Step 10: 5643 + 627 = 6270
Step 11: 6270 + 627 = 6897
Step 12: 6897 + 627 = 7524
Step 13: 7524 + 627 = 8151
Step 14: 8151 + 627 = 8778
Step 15: 8778 + 627 = 9405
Step 16: 9405 + 627 = 10032
Step 17: 10032 + 627 = 10659
Step 18: 10659 + 627 = 11286
Step 19: 11286 + 627 = 11913
Step 20: 11913 + 627 = 12540
Step 21: 12540 + 627 = 13167
Step 22: 13167 + 627 = 13794
Step 23: 13794 + 627 = 14421
Step 24: 14421 + 627 = 15048
Step 25: 15048 + 627 = 15675
Step 26: 15675 + 627 = 16302
Step 27: 16302 + 627 = 16929
Step 28: 16929 + 627 = 17556
Step 29: 17556 + 627 = 18183
Step 30: 18183 + 627 = 18810
Step 31: 18810 + 627 = 19437
Step 32: 19437 + 627 = 20064
Step 33: 20064 + 627 = 20691
Step 34: 20691 + 627 = 21318
Step 35: 21318 + 627 = 21945
Step 36: 21945 + 627 = 22572
Step 37: 22572 + 627 = 23199
Step 38: 23199 + 627 = 23826
Step 39: 23826 + 627 = 24453
Step 40: 24453 + 627 = 25080
Step 41: 25080 + 627 = 25707
Step 42: 25707 + 627 = 26334
Step 43: 26334 + 627 = 26961
Step 44: 26961 + 627 = 27588
Step 45: 27588 + 627 = 28215
Step 46: 28215 + 627 = 28842
Step 47: 28842 + 627 = 29469
Step 48: 29469 + 627 = 30096
Step 49: 30096 + 627 = 30723
Step 50: 30723 + 627 = 31350
Step 51: 31350 + 627 = 31977
Step 52: 31977 + 627 = 32604
Step 53: 32604 + 627 = 33231
Step 54: 33231 + 627 = 33858
Step 55: 33858 + 627 = 34485
Step 56: 34485 + 627 = 35112
Step 57: 35112 + 627 = 35739
Step 58: 35739 + 627 = 36366
Step 59: 36366 + 627 = 36993
Step 60: 36993 + 627 = 37620
Step 61: 37620 + 627 = 38247
Step 62: 38247 + 627 = 38874
Step 63: 38874 + 627 = 39501
Step 64: 39501 + 627 = 40128
Step 65: 40128 + 627 = 40755
Step 66: 40755 + 627 = 41382
Step 67: 41382 + 627 = 42009
Step 68: 42009 + 627 = 42636
Step 69: 42636 + 627 = 43263
Step 70: 43263 + 627 = 43890
Step 71: 43890 + 627 = 44517
Step 72: 44517 + 627 = 45144
Step 73: 45144 + 627 = 45771
Step 74: 45771 + 627 = 46398
Step 75: 46398 + 627 = 47025
Step 76: 47025 + 627 = 47652
Step 77: 47652 + 627 = 48279
Step 78: 48279 + 627 = 48906
Step 79: 48906 + 627 = 49533
Step 80: 49533 + 627 = 50160
Step 81: 50160 + 627 = 50787
Step 82: 50787 + 627 = 51414
Step 83: 51414 + 627 = 52041
Step 84: 52041 + 627 = 52668
Step 85: 52668 + 627 = 53295
Step 86: 53295 + 627 = 53922
Step 87: 53922 + 627 = 54549
Step 88: 54549 + 627 = 55176
Step 89: 55176 + 627 = 55803
Step 90: 55803 + 627 = 56430
Step 91: 56430 + 627 = 57057
Step 92: 57057 + 627 = 57684
Step 93: 57684 + 627 = 58311
Step 94: 58311 + 627 = 58938
Step 95: 58938 + 627 = 59565
Step 96: 59565 + 627 = 60192
Step 97: 60192 + 627 = 60819
Step 98: 60819 + 627 = 61446
Step 99: 61446 + 627 = 62073
Step 100: 62073 + 627 = 62700
Step 101: 62700 + 627 = 63327
Step 102: 63327 + 627 = 63954

So, 627*102 = 63954