Alright, let's solve this math problem step by step. First, we have the number 721. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 12. So, we're going to take the number 721 and add it to itself 12 times.
Step 1: 0 + 721 = 721
Step 2: 721 + 721 = 1442
Step 3: 1442 + 721 = 2163
Step 4: 2163 + 721 = 2884
Step 5: 2884 + 721 = 3605
Step 6: 3605 + 721 = 4326
Step 7: 4326 + 721 = 5047
Step 8: 5047 + 721 = 5768
Step 9: 5768 + 721 = 6489
Step 10: 6489 + 721 = 7210
Step 11: 7210 + 721 = 7931
Step 12: 7931 + 721 = 8652

So, 721*12 = 8652