Sure thing! We've got 862 and we're gonna multiply it by 20. That's the same as adding 862 to itself 20 times.
Step 1: 0 + 862 = 862
Step 2: 862 + 862 = 1724
Step 3: 1724 + 862 = 2586
Step 4: 2586 + 862 = 3448
Step 5: 3448 + 862 = 4310
Step 6: 4310 + 862 = 5172
Step 7: 5172 + 862 = 6034
Step 8: 6034 + 862 = 6896
Step 9: 6896 + 862 = 7758
Step 10: 7758 + 862 = 8620
Step 11: 8620 + 862 = 9482
Step 12: 9482 + 862 = 10344
Step 13: 10344 + 862 = 11206
Step 14: 11206 + 862 = 12068
Step 15: 12068 + 862 = 12930
Step 16: 12930 + 862 = 13792
Step 17: 13792 + 862 = 14654
Step 18: 14654 + 862 = 15516
Step 19: 15516 + 862 = 16378
Step 20: 16378 + 862 = 17240

So, 862*20 = 17240