Alright, let's solve this math problem step by step. First, we have the number 647. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 73. So, we're going to take the number 647 and add it to itself 73 times.
Step 1: 0 + 647 = 647
Step 2: 647 + 647 = 1294
Step 3: 1294 + 647 = 1941
Step 4: 1941 + 647 = 2588
Step 5: 2588 + 647 = 3235
Step 6: 3235 + 647 = 3882
Step 7: 3882 + 647 = 4529
Step 8: 4529 + 647 = 5176
Step 9: 5176 + 647 = 5823
Step 10: 5823 + 647 = 6470
Step 11: 6470 + 647 = 7117
Step 12: 7117 + 647 = 7764
Step 13: 7764 + 647 = 8411
Step 14: 8411 + 647 = 9058
Step 15: 9058 + 647 = 9705
Step 16: 9705 + 647 = 10352
Step 17: 10352 + 647 = 10999
Step 18: 10999 + 647 = 11646
Step 19: 11646 + 647 = 12293
Step 20: 12293 + 647 = 12940
Step 21: 12940 + 647 = 13587
Step 22: 13587 + 647 = 14234
Step 23: 14234 + 647 = 14881
Step 24: 14881 + 647 = 15528
Step 25: 15528 + 647 = 16175
Step 26: 16175 + 647 = 16822
Step 27: 16822 + 647 = 17469
Step 28: 17469 + 647 = 18116
Step 29: 18116 + 647 = 18763
Step 30: 18763 + 647 = 19410
Step 31: 19410 + 647 = 20057
Step 32: 20057 + 647 = 20704
Step 33: 20704 + 647 = 21351
Step 34: 21351 + 647 = 21998
Step 35: 21998 + 647 = 22645
Step 36: 22645 + 647 = 23292
Step 37: 23292 + 647 = 23939
Step 38: 23939 + 647 = 24586
Step 39: 24586 + 647 = 25233
Step 40: 25233 + 647 = 25880
Step 41: 25880 + 647 = 26527
Step 42: 26527 + 647 = 27174
Step 43: 27174 + 647 = 27821
Step 44: 27821 + 647 = 28468
Step 45: 28468 + 647 = 29115
Step 46: 29115 + 647 = 29762
Step 47: 29762 + 647 = 30409
Step 48: 30409 + 647 = 31056
Step 49: 31056 + 647 = 31703
Step 50: 31703 + 647 = 32350
Step 51: 32350 + 647 = 32997
Step 52: 32997 + 647 = 33644
Step 53: 33644 + 647 = 34291
Step 54: 34291 + 647 = 34938
Step 55: 34938 + 647 = 35585
Step 56: 35585 + 647 = 36232
Step 57: 36232 + 647 = 36879
Step 58: 36879 + 647 = 37526
Step 59: 37526 + 647 = 38173
Step 60: 38173 + 647 = 38820
Step 61: 38820 + 647 = 39467
Step 62: 39467 + 647 = 40114
Step 63: 40114 + 647 = 40761
Step 64: 40761 + 647 = 41408
Step 65: 41408 + 647 = 42055
Step 66: 42055 + 647 = 42702
Step 67: 42702 + 647 = 43349
Step 68: 43349 + 647 = 43996
Step 69: 43996 + 647 = 44643
Step 70: 44643 + 647 = 45290
Step 71: 45290 + 647 = 45937
Step 72: 45937 + 647 = 46584
Step 73: 46584 + 647 = 47231

So, 647*73 = 47231