OK, let's work through this together. We're starting with 124 and we're going to multiply it by 37, which means we add 124 to itself 37 times.
Step 1: 0 + 124 = 124
Step 2: 124 + 124 = 248
Step 3: 248 + 124 = 372
Step 4: 372 + 124 = 496
Step 5: 496 + 124 = 620
Step 6: 620 + 124 = 744
Step 7: 744 + 124 = 868
Step 8: 868 + 124 = 992
Step 9: 992 + 124 = 1116
Step 10: 1116 + 124 = 1240
Step 11: 1240 + 124 = 1364
Step 12: 1364 + 124 = 1488
Step 13: 1488 + 124 = 1612
Step 14: 1612 + 124 = 1736
Step 15: 1736 + 124 = 1860
Step 16: 1860 + 124 = 1984
Step 17: 1984 + 124 = 2108
Step 18: 2108 + 124 = 2232
Step 19: 2232 + 124 = 2356
Step 20: 2356 + 124 = 2480
Step 21: 2480 + 124 = 2604
Step 22: 2604 + 124 = 2728
Step 23: 2728 + 124 = 2852
Step 24: 2852 + 124 = 2976
Step 25: 2976 + 124 = 3100
Step 26: 3100 + 124 = 3224
Step 27: 3224 + 124 = 3348
Step 28: 3348 + 124 = 3472
Step 29: 3472 + 124 = 3596
Step 30: 3596 + 124 = 3720
Step 31: 3720 + 124 = 3844
Step 32: 3844 + 124 = 3968
Step 33: 3968 + 124 = 4092
Step 34: 4092 + 124 = 4216
Step 35: 4216 + 124 = 4340
Step 36: 4340 + 124 = 4464
Step 37: 4464 + 124 = 4588

So, 124*37 = 4588