Let's get this math done. We have 409 and we're going to multiply it by 3. This is the same as taking 409 and adding it to itself 3 times.
Step 1: 0 + 409 = 409
Step 2: 409 + 409 = 818
Step 3: 818 + 409 = 1227

So, 409*3 = 1227