Sure thing, let's get straight to it. We start with 936 and we're going to multiply it by 72, which means adding 936 to itself 72 times.
Step 1: 0 + 936 = 936
Step 2: 936 + 936 = 1872
Step 3: 1872 + 936 = 2808
Step 4: 2808 + 936 = 3744
Step 5: 3744 + 936 = 4680
Step 6: 4680 + 936 = 5616
Step 7: 5616 + 936 = 6552
Step 8: 6552 + 936 = 7488
Step 9: 7488 + 936 = 8424
Step 10: 8424 + 936 = 9360
Step 11: 9360 + 936 = 10296
Step 12: 10296 + 936 = 11232
Step 13: 11232 + 936 = 12168
Step 14: 12168 + 936 = 13104
Step 15: 13104 + 936 = 14040
Step 16: 14040 + 936 = 14976
Step 17: 14976 + 936 = 15912
Step 18: 15912 + 936 = 16848
Step 19: 16848 + 936 = 17784
Step 20: 17784 + 936 = 18720
Step 21: 18720 + 936 = 19656
Step 22: 19656 + 936 = 20592
Step 23: 20592 + 936 = 21528
Step 24: 21528 + 936 = 22464
Step 25: 22464 + 936 = 23400
Step 26: 23400 + 936 = 24336
Step 27: 24336 + 936 = 25272
Step 28: 25272 + 936 = 26208
Step 29: 26208 + 936 = 27144
Step 30: 27144 + 936 = 28080
Step 31: 28080 + 936 = 29016
Step 32: 29016 + 936 = 29952
Step 33: 29952 + 936 = 30888
Step 34: 30888 + 936 = 31824
Step 35: 31824 + 936 = 32760
Step 36: 32760 + 936 = 33696
Step 37: 33696 + 936 = 34632
Step 38: 34632 + 936 = 35568
Step 39: 35568 + 936 = 36504
Step 40: 36504 + 936 = 37440
Step 41: 37440 + 936 = 38376
Step 42: 38376 + 936 = 39312
Step 43: 39312 + 936 = 40248
Step 44: 40248 + 936 = 41184
Step 45: 41184 + 936 = 42120
Step 46: 42120 + 936 = 43056
Step 47: 43056 + 936 = 43992
Step 48: 43992 + 936 = 44928
Step 49: 44928 + 936 = 45864
Step 50: 45864 + 936 = 46800
Step 51: 46800 + 936 = 47736
Step 52: 47736 + 936 = 48672
Step 53: 48672 + 936 = 49608
Step 54: 49608 + 936 = 50544
Step 55: 50544 + 936 = 51480
Step 56: 51480 + 936 = 52416
Step 57: 52416 + 936 = 53352
Step 58: 53352 + 936 = 54288
Step 59: 54288 + 936 = 55224
Step 60: 55224 + 936 = 56160
Step 61: 56160 + 936 = 57096
Step 62: 57096 + 936 = 58032
Step 63: 58032 + 936 = 58968
Step 64: 58968 + 936 = 59904
Step 65: 59904 + 936 = 60840
Step 66: 60840 + 936 = 61776
Step 67: 61776 + 936 = 62712
Step 68: 62712 + 936 = 63648
Step 69: 63648 + 936 = 64584
Step 70: 64584 + 936 = 65520
Step 71: 65520 + 936 = 66456
Step 72: 66456 + 936 = 67392

So, 936*72 = 67392