Let's get this math done. We have 234 and we're going to multiply it by 31. This is the same as taking 234 and adding it to itself 31 times.
Step 1: 0 + 234 = 234
Step 2: 234 + 234 = 468
Step 3: 468 + 234 = 702
Step 4: 702 + 234 = 936
Step 5: 936 + 234 = 1170
Step 6: 1170 + 234 = 1404
Step 7: 1404 + 234 = 1638
Step 8: 1638 + 234 = 1872
Step 9: 1872 + 234 = 2106
Step 10: 2106 + 234 = 2340
Step 11: 2340 + 234 = 2574
Step 12: 2574 + 234 = 2808
Step 13: 2808 + 234 = 3042
Step 14: 3042 + 234 = 3276
Step 15: 3276 + 234 = 3510
Step 16: 3510 + 234 = 3744
Step 17: 3744 + 234 = 3978
Step 18: 3978 + 234 = 4212
Step 19: 4212 + 234 = 4446
Step 20: 4446 + 234 = 4680
Step 21: 4680 + 234 = 4914
Step 22: 4914 + 234 = 5148
Step 23: 5148 + 234 = 5382
Step 24: 5382 + 234 = 5616
Step 25: 5616 + 234 = 5850
Step 26: 5850 + 234 = 6084
Step 27: 6084 + 234 = 6318
Step 28: 6318 + 234 = 6552
Step 29: 6552 + 234 = 6786
Step 30: 6786 + 234 = 7020
Step 31: 7020 + 234 = 7254

So, 234*31 = 7254