Alright, let's solve this math problem step by step. First, we have the number 537. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 124. So, we're going to take the number 537 and add it to itself 124 times.
Step 1: 0 + 537 = 537
Step 2: 537 + 537 = 1074
Step 3: 1074 + 537 = 1611
Step 4: 1611 + 537 = 2148
Step 5: 2148 + 537 = 2685
Step 6: 2685 + 537 = 3222
Step 7: 3222 + 537 = 3759
Step 8: 3759 + 537 = 4296
Step 9: 4296 + 537 = 4833
Step 10: 4833 + 537 = 5370
Step 11: 5370 + 537 = 5907
Step 12: 5907 + 537 = 6444
Step 13: 6444 + 537 = 6981
Step 14: 6981 + 537 = 7518
Step 15: 7518 + 537 = 8055
Step 16: 8055 + 537 = 8592
Step 17: 8592 + 537 = 9129
Step 18: 9129 + 537 = 9666
Step 19: 9666 + 537 = 10203
Step 20: 10203 + 537 = 10740
Step 21: 10740 + 537 = 11277
Step 22: 11277 + 537 = 11814
Step 23: 11814 + 537 = 12351
Step 24: 12351 + 537 = 12888
Step 25: 12888 + 537 = 13425
Step 26: 13425 + 537 = 13962
Step 27: 13962 + 537 = 14499
Step 28: 14499 + 537 = 15036
Step 29: 15036 + 537 = 15573
Step 30: 15573 + 537 = 16110
Step 31: 16110 + 537 = 16647
Step 32: 16647 + 537 = 17184
Step 33: 17184 + 537 = 17721
Step 34: 17721 + 537 = 18258
Step 35: 18258 + 537 = 18795
Step 36: 18795 + 537 = 19332
Step 37: 19332 + 537 = 19869
Step 38: 19869 + 537 = 20406
Step 39: 20406 + 537 = 20943
Step 40: 20943 + 537 = 21480
Step 41: 21480 + 537 = 22017
Step 42: 22017 + 537 = 22554
Step 43: 22554 + 537 = 23091
Step 44: 23091 + 537 = 23628
Step 45: 23628 + 537 = 24165
Step 46: 24165 + 537 = 24702
Step 47: 24702 + 537 = 25239
Step 48: 25239 + 537 = 25776
Step 49: 25776 + 537 = 26313
Step 50: 26313 + 537 = 26850
Step 51: 26850 + 537 = 27387
Step 52: 27387 + 537 = 27924
Step 53: 27924 + 537 = 28461
Step 54: 28461 + 537 = 28998
Step 55: 28998 + 537 = 29535
Step 56: 29535 + 537 = 30072
Step 57: 30072 + 537 = 30609
Step 58: 30609 + 537 = 31146
Step 59: 31146 + 537 = 31683
Step 60: 31683 + 537 = 32220
Step 61: 32220 + 537 = 32757
Step 62: 32757 + 537 = 33294
Step 63: 33294 + 537 = 33831
Step 64: 33831 + 537 = 34368
Step 65: 34368 + 537 = 34905
Step 66: 34905 + 537 = 35442
Step 67: 35442 + 537 = 35979
Step 68: 35979 + 537 = 36516
Step 69: 36516 + 537 = 37053
Step 70: 37053 + 537 = 37590
Step 71: 37590 + 537 = 38127
Step 72: 38127 + 537 = 38664
Step 73: 38664 + 537 = 39201
Step 74: 39201 + 537 = 39738
Step 75: 39738 + 537 = 40275
Step 76: 40275 + 537 = 40812
Step 77: 40812 + 537 = 41349
Step 78: 41349 + 537 = 41886
Step 79: 41886 + 537 = 42423
Step 80: 42423 + 537 = 42960
Step 81: 42960 + 537 = 43497
Step 82: 43497 + 537 = 44034
Step 83: 44034 + 537 = 44571
Step 84: 44571 + 537 = 45108
Step 85: 45108 + 537 = 45645
Step 86: 45645 + 537 = 46182
Step 87: 46182 + 537 = 46719
Step 88: 46719 + 537 = 47256
Step 89: 47256 + 537 = 47793
Step 90: 47793 + 537 = 48330
Step 91: 48330 + 537 = 48867
Step 92: 48867 + 537 = 49404
Step 93: 49404 + 537 = 49941
Step 94: 49941 + 537 = 50478
Step 95: 50478 + 537 = 51015
Step 96: 51015 + 537 = 51552
Step 97: 51552 + 537 = 52089
Step 98: 52089 + 537 = 52626
Step 99: 52626 + 537 = 53163
Step 100: 53163 + 537 = 53700
Step 101: 53700 + 537 = 54237
Step 102: 54237 + 537 = 54774
Step 103: 54774 + 537 = 55311
Step 104: 55311 + 537 = 55848
Step 105: 55848 + 537 = 56385
Step 106: 56385 + 537 = 56922
Step 107: 56922 + 537 = 57459
Step 108: 57459 + 537 = 57996
Step 109: 57996 + 537 = 58533
Step 110: 58533 + 537 = 59070
Step 111: 59070 + 537 = 59607
Step 112: 59607 + 537 = 60144
Step 113: 60144 + 537 = 60681
Step 114: 60681 + 537 = 61218
Step 115: 61218 + 537 = 61755
Step 116: 61755 + 537 = 62292
Step 117: 62292 + 537 = 62829
Step 118: 62829 + 537 = 63366
Step 119: 63366 + 537 = 63903
Step 120: 63903 + 537 = 64440
Step 121: 64440 + 537 = 64977
Step 122: 64977 + 537 = 65514
Step 123: 65514 + 537 = 66051
Step 124: 66051 + 537 = 66588

So, 537*124 = 66588