Sure thing, let's get straight to it. We start with 703 and we're going to multiply it by 31, which means adding 703 to itself 31 times.
Step 1: 0 + 703 = 703
Step 2: 703 + 703 = 1406
Step 3: 1406 + 703 = 2109
Step 4: 2109 + 703 = 2812
Step 5: 2812 + 703 = 3515
Step 6: 3515 + 703 = 4218
Step 7: 4218 + 703 = 4921
Step 8: 4921 + 703 = 5624
Step 9: 5624 + 703 = 6327
Step 10: 6327 + 703 = 7030
Step 11: 7030 + 703 = 7733
Step 12: 7733 + 703 = 8436
Step 13: 8436 + 703 = 9139
Step 14: 9139 + 703 = 9842
Step 15: 9842 + 703 = 10545
Step 16: 10545 + 703 = 11248
Step 17: 11248 + 703 = 11951
Step 18: 11951 + 703 = 12654
Step 19: 12654 + 703 = 13357
Step 20: 13357 + 703 = 14060
Step 21: 14060 + 703 = 14763
Step 22: 14763 + 703 = 15466
Step 23: 15466 + 703 = 16169
Step 24: 16169 + 703 = 16872
Step 25: 16872 + 703 = 17575
Step 26: 17575 + 703 = 18278
Step 27: 18278 + 703 = 18981
Step 28: 18981 + 703 = 19684
Step 29: 19684 + 703 = 20387
Step 30: 20387 + 703 = 21090
Step 31: 21090 + 703 = 21793

So, 703*31 = 21793