Alright, let's solve this math problem step by step. First, we have the number 942. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 23. So, we're going to take the number 942 and add it to itself 23 times.
Step 1: 0 + 942 = 942
Step 2: 942 + 942 = 1884
Step 3: 1884 + 942 = 2826
Step 4: 2826 + 942 = 3768
Step 5: 3768 + 942 = 4710
Step 6: 4710 + 942 = 5652
Step 7: 5652 + 942 = 6594
Step 8: 6594 + 942 = 7536
Step 9: 7536 + 942 = 8478
Step 10: 8478 + 942 = 9420
Step 11: 9420 + 942 = 10362
Step 12: 10362 + 942 = 11304
Step 13: 11304 + 942 = 12246
Step 14: 12246 + 942 = 13188
Step 15: 13188 + 942 = 14130
Step 16: 14130 + 942 = 15072
Step 17: 15072 + 942 = 16014
Step 18: 16014 + 942 = 16956
Step 19: 16956 + 942 = 17898
Step 20: 17898 + 942 = 18840
Step 21: 18840 + 942 = 19782
Step 22: 19782 + 942 = 20724
Step 23: 20724 + 942 = 21666

So, 942*23 = 21666