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 43. So, we're going to take the number 73 and add it to itself 43 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

So, 73*43 = 3139