Alright, let's solve this math problem step by step. First, we have the number 557. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 72. So, we're going to take the number 557 and add it to itself 72 times.
Step 1: 0 + 557 = 557
Step 2: 557 + 557 = 1114
Step 3: 1114 + 557 = 1671
Step 4: 1671 + 557 = 2228
Step 5: 2228 + 557 = 2785
Step 6: 2785 + 557 = 3342
Step 7: 3342 + 557 = 3899
Step 8: 3899 + 557 = 4456
Step 9: 4456 + 557 = 5013
Step 10: 5013 + 557 = 5570
Step 11: 5570 + 557 = 6127
Step 12: 6127 + 557 = 6684
Step 13: 6684 + 557 = 7241
Step 14: 7241 + 557 = 7798
Step 15: 7798 + 557 = 8355
Step 16: 8355 + 557 = 8912
Step 17: 8912 + 557 = 9469
Step 18: 9469 + 557 = 10026
Step 19: 10026 + 557 = 10583
Step 20: 10583 + 557 = 11140
Step 21: 11140 + 557 = 11697
Step 22: 11697 + 557 = 12254
Step 23: 12254 + 557 = 12811
Step 24: 12811 + 557 = 13368
Step 25: 13368 + 557 = 13925
Step 26: 13925 + 557 = 14482
Step 27: 14482 + 557 = 15039
Step 28: 15039 + 557 = 15596
Step 29: 15596 + 557 = 16153
Step 30: 16153 + 557 = 16710
Step 31: 16710 + 557 = 17267
Step 32: 17267 + 557 = 17824
Step 33: 17824 + 557 = 18381
Step 34: 18381 + 557 = 18938
Step 35: 18938 + 557 = 19495
Step 36: 19495 + 557 = 20052
Step 37: 20052 + 557 = 20609
Step 38: 20609 + 557 = 21166
Step 39: 21166 + 557 = 21723
Step 40: 21723 + 557 = 22280
Step 41: 22280 + 557 = 22837
Step 42: 22837 + 557 = 23394
Step 43: 23394 + 557 = 23951
Step 44: 23951 + 557 = 24508
Step 45: 24508 + 557 = 25065
Step 46: 25065 + 557 = 25622
Step 47: 25622 + 557 = 26179
Step 48: 26179 + 557 = 26736
Step 49: 26736 + 557 = 27293
Step 50: 27293 + 557 = 27850
Step 51: 27850 + 557 = 28407
Step 52: 28407 + 557 = 28964
Step 53: 28964 + 557 = 29521
Step 54: 29521 + 557 = 30078
Step 55: 30078 + 557 = 30635
Step 56: 30635 + 557 = 31192
Step 57: 31192 + 557 = 31749
Step 58: 31749 + 557 = 32306
Step 59: 32306 + 557 = 32863
Step 60: 32863 + 557 = 33420
Step 61: 33420 + 557 = 33977
Step 62: 33977 + 557 = 34534
Step 63: 34534 + 557 = 35091
Step 64: 35091 + 557 = 35648
Step 65: 35648 + 557 = 36205
Step 66: 36205 + 557 = 36762
Step 67: 36762 + 557 = 37319
Step 68: 37319 + 557 = 37876
Step 69: 37876 + 557 = 38433
Step 70: 38433 + 557 = 38990
Step 71: 38990 + 557 = 39547
Step 72: 39547 + 557 = 40104

So, 557*72 = 40104