Alright, let's solve this math problem step by step. First, we have the number 454. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 9. So, we're going to take the number 454 and add it to itself 9 times.
Step 1: 0 + 454 = 454
Step 2: 454 + 454 = 908
Step 3: 908 + 454 = 1362
Step 4: 1362 + 454 = 1816
Step 5: 1816 + 454 = 2270
Step 6: 2270 + 454 = 2724
Step 7: 2724 + 454 = 3178
Step 8: 3178 + 454 = 3632
Step 9: 3632 + 454 = 4086

So, 454*9 = 4086