Alright, let's solve this math problem step by step. First, we have the number 615. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 73. So, we're going to take the number 615 and add it to itself 73 times.
Step 1: 0 + 615 = 615
Step 2: 615 + 615 = 1230
Step 3: 1230 + 615 = 1845
Step 4: 1845 + 615 = 2460
Step 5: 2460 + 615 = 3075
Step 6: 3075 + 615 = 3690
Step 7: 3690 + 615 = 4305
Step 8: 4305 + 615 = 4920
Step 9: 4920 + 615 = 5535
Step 10: 5535 + 615 = 6150
Step 11: 6150 + 615 = 6765
Step 12: 6765 + 615 = 7380
Step 13: 7380 + 615 = 7995
Step 14: 7995 + 615 = 8610
Step 15: 8610 + 615 = 9225
Step 16: 9225 + 615 = 9840
Step 17: 9840 + 615 = 10455
Step 18: 10455 + 615 = 11070
Step 19: 11070 + 615 = 11685
Step 20: 11685 + 615 = 12300
Step 21: 12300 + 615 = 12915
Step 22: 12915 + 615 = 13530
Step 23: 13530 + 615 = 14145
Step 24: 14145 + 615 = 14760
Step 25: 14760 + 615 = 15375
Step 26: 15375 + 615 = 15990
Step 27: 15990 + 615 = 16605
Step 28: 16605 + 615 = 17220
Step 29: 17220 + 615 = 17835
Step 30: 17835 + 615 = 18450
Step 31: 18450 + 615 = 19065
Step 32: 19065 + 615 = 19680
Step 33: 19680 + 615 = 20295
Step 34: 20295 + 615 = 20910
Step 35: 20910 + 615 = 21525
Step 36: 21525 + 615 = 22140
Step 37: 22140 + 615 = 22755
Step 38: 22755 + 615 = 23370
Step 39: 23370 + 615 = 23985
Step 40: 23985 + 615 = 24600
Step 41: 24600 + 615 = 25215
Step 42: 25215 + 615 = 25830
Step 43: 25830 + 615 = 26445
Step 44: 26445 + 615 = 27060
Step 45: 27060 + 615 = 27675
Step 46: 27675 + 615 = 28290
Step 47: 28290 + 615 = 28905
Step 48: 28905 + 615 = 29520
Step 49: 29520 + 615 = 30135
Step 50: 30135 + 615 = 30750
Step 51: 30750 + 615 = 31365
Step 52: 31365 + 615 = 31980
Step 53: 31980 + 615 = 32595
Step 54: 32595 + 615 = 33210
Step 55: 33210 + 615 = 33825
Step 56: 33825 + 615 = 34440
Step 57: 34440 + 615 = 35055
Step 58: 35055 + 615 = 35670
Step 59: 35670 + 615 = 36285
Step 60: 36285 + 615 = 36900
Step 61: 36900 + 615 = 37515
Step 62: 37515 + 615 = 38130
Step 63: 38130 + 615 = 38745
Step 64: 38745 + 615 = 39360
Step 65: 39360 + 615 = 39975
Step 66: 39975 + 615 = 40590
Step 67: 40590 + 615 = 41205
Step 68: 41205 + 615 = 41820
Step 69: 41820 + 615 = 42435
Step 70: 42435 + 615 = 43050
Step 71: 43050 + 615 = 43665
Step 72: 43665 + 615 = 44280
Step 73: 44280 + 615 = 44895

So, 615*73 = 44895