OK, let's work through this together. We're starting with 731 and we're going to multiply it by 12, which means we add 731 to itself 12 times.
Step 1: 0 + 731 = 731
Step 2: 731 + 731 = 1462
Step 3: 1462 + 731 = 2193
Step 4: 2193 + 731 = 2924
Step 5: 2924 + 731 = 3655
Step 6: 3655 + 731 = 4386
Step 7: 4386 + 731 = 5117
Step 8: 5117 + 731 = 5848
Step 9: 5848 + 731 = 6579
Step 10: 6579 + 731 = 7310
Step 11: 7310 + 731 = 8041
Step 12: 8041 + 731 = 8772

So, 731*12 = 8772