Alright, let's solve this math problem step by step. First, we have the number 921. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 24. So, we're going to take the number 921 and add it to itself 24 times.
Step 1: 0 + 921 = 921
Step 2: 921 + 921 = 1842
Step 3: 1842 + 921 = 2763
Step 4: 2763 + 921 = 3684
Step 5: 3684 + 921 = 4605
Step 6: 4605 + 921 = 5526
Step 7: 5526 + 921 = 6447
Step 8: 6447 + 921 = 7368
Step 9: 7368 + 921 = 8289
Step 10: 8289 + 921 = 9210
Step 11: 9210 + 921 = 10131
Step 12: 10131 + 921 = 11052
Step 13: 11052 + 921 = 11973
Step 14: 11973 + 921 = 12894
Step 15: 12894 + 921 = 13815
Step 16: 13815 + 921 = 14736
Step 17: 14736 + 921 = 15657
Step 18: 15657 + 921 = 16578
Step 19: 16578 + 921 = 17499
Step 20: 17499 + 921 = 18420
Step 21: 18420 + 921 = 19341
Step 22: 19341 + 921 = 20262
Step 23: 20262 + 921 = 21183
Step 24: 21183 + 921 = 22104

So, 921*24 = 22104