Alright, let's solve this math problem step by step. First, we have the number 73. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 100. So, we're going to take the number 73 and add it to itself 100 times.
Step 1: 0 + 73 = 73
Step 2: 73 + 73 = 146
Step 3: 146 + 73 = 219
Step 4: 219 + 73 = 292
Step 5: 292 + 73 = 365
Step 6: 365 + 73 = 438
Step 7: 438 + 73 = 511
Step 8: 511 + 73 = 584
Step 9: 584 + 73 = 657
Step 10: 657 + 73 = 730
Step 11: 730 + 73 = 803
Step 12: 803 + 73 = 876
Step 13: 876 + 73 = 949
Step 14: 949 + 73 = 1022
Step 15: 1022 + 73 = 1095
Step 16: 1095 + 73 = 1168
Step 17: 1168 + 73 = 1241
Step 18: 1241 + 73 = 1314
Step 19: 1314 + 73 = 1387
Step 20: 1387 + 73 = 1460
Step 21: 1460 + 73 = 1533
Step 22: 1533 + 73 = 1606
Step 23: 1606 + 73 = 1679
Step 24: 1679 + 73 = 1752
Step 25: 1752 + 73 = 1825
Step 26: 1825 + 73 = 1898
Step 27: 1898 + 73 = 1971
Step 28: 1971 + 73 = 2044
Step 29: 2044 + 73 = 2117
Step 30: 2117 + 73 = 2190
Step 31: 2190 + 73 = 2263
Step 32: 2263 + 73 = 2336
Step 33: 2336 + 73 = 2409
Step 34: 2409 + 73 = 2482
Step 35: 2482 + 73 = 2555
Step 36: 2555 + 73 = 2628
Step 37: 2628 + 73 = 2701
Step 38: 2701 + 73 = 2774
Step 39: 2774 + 73 = 2847
Step 40: 2847 + 73 = 2920
Step 41: 2920 + 73 = 2993
Step 42: 2993 + 73 = 3066
Step 43: 3066 + 73 = 3139
Step 44: 3139 + 73 = 3212
Step 45: 3212 + 73 = 3285
Step 46: 3285 + 73 = 3358
Step 47: 3358 + 73 = 3431
Step 48: 3431 + 73 = 3504
Step 49: 3504 + 73 = 3577
Step 50: 3577 + 73 = 3650
Step 51: 3650 + 73 = 3723
Step 52: 3723 + 73 = 3796
Step 53: 3796 + 73 = 3869
Step 54: 3869 + 73 = 3942
Step 55: 3942 + 73 = 4015
Step 56: 4015 + 73 = 4088
Step 57: 4088 + 73 = 4161
Step 58: 4161 + 73 = 4234
Step 59: 4234 + 73 = 4307
Step 60: 4307 + 73 = 4380
Step 61: 4380 + 73 = 4453
Step 62: 4453 + 73 = 4526
Step 63: 4526 + 73 = 4599
Step 64: 4599 + 73 = 4672
Step 65: 4672 + 73 = 4745
Step 66: 4745 + 73 = 4818
Step 67: 4818 + 73 = 4891
Step 68: 4891 + 73 = 4964
Step 69: 4964 + 73 = 5037
Step 70: 5037 + 73 = 5110
Step 71: 5110 + 73 = 5183
Step 72: 5183 + 73 = 5256
Step 73: 5256 + 73 = 5329
Step 74: 5329 + 73 = 5402
Step 75: 5402 + 73 = 5475
Step 76: 5475 + 73 = 5548
Step 77: 5548 + 73 = 5621
Step 78: 5621 + 73 = 5694
Step 79: 5694 + 73 = 5767
Step 80: 5767 + 73 = 5840
Step 81: 5840 + 73 = 5913
Step 82: 5913 + 73 = 5986
Step 83: 5986 + 73 = 6059
Step 84: 6059 + 73 = 6132
Step 85: 6132 + 73 = 6205
Step 86: 6205 + 73 = 6278
Step 87: 6278 + 73 = 6351
Step 88: 6351 + 73 = 6424
Step 89: 6424 + 73 = 6497
Step 90: 6497 + 73 = 6570
Step 91: 6570 + 73 = 6643
Step 92: 6643 + 73 = 6716
Step 93: 6716 + 73 = 6789
Step 94: 6789 + 73 = 6862
Step 95: 6862 + 73 = 6935
Step 96: 6935 + 73 = 7008
Step 97: 7008 + 73 = 7081
Step 98: 7081 + 73 = 7154
Step 99: 7154 + 73 = 7227
Step 100: 7227 + 73 = 7300

So, 73*100 = 7300