Alright, let's solve this math problem step by step. First, we have the number 523. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 20. So, we're going to take the number 523 and add it to itself 20 times.
Step 1: 0 + 523 = 523
Step 2: 523 + 523 = 1046
Step 3: 1046 + 523 = 1569
Step 4: 1569 + 523 = 2092
Step 5: 2092 + 523 = 2615
Step 6: 2615 + 523 = 3138
Step 7: 3138 + 523 = 3661
Step 8: 3661 + 523 = 4184
Step 9: 4184 + 523 = 4707
Step 10: 4707 + 523 = 5230
Step 11: 5230 + 523 = 5753
Step 12: 5753 + 523 = 6276
Step 13: 6276 + 523 = 6799
Step 14: 6799 + 523 = 7322
Step 15: 7322 + 523 = 7845
Step 16: 7845 + 523 = 8368
Step 17: 8368 + 523 = 8891
Step 18: 8891 + 523 = 9414
Step 19: 9414 + 523 = 9937
Step 20: 9937 + 523 = 10460

So, 523*20 = 10460