Alright, let's solve this math problem step by step. First, we have the number 408. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 7. So, we're going to take the number 408 and add it to itself 7 times.
Step 1: 0 + 408 = 408
Step 2: 408 + 408 = 816
Step 3: 816 + 408 = 1224
Step 4: 1224 + 408 = 1632
Step 5: 1632 + 408 = 2040
Step 6: 2040 + 408 = 2448
Step 7: 2448 + 408 = 2856

So, 408*7 = 2856