Without delay, let's solve this. We've got 408 and we will be multiplying it by 9, that is, adding 408 to itself 9 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
Step 8: 2856 + 408 = 3264
Step 9: 3264 + 408 = 3672

So, 408*9 = 3672