Alright, let's solve this math problem step by step. First, we have the number 657. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 71. So, we're going to take the number 657 and add it to itself 71 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

So, 657*71 = 46647