OK, let's work through this together. We're starting with 409 and we're going to multiply it by 5, which means we add 409 to itself 5 times.
Step 1: 0 + 409 = 409
Step 2: 409 + 409 = 818
Step 3: 818 + 409 = 1227
Step 4: 1227 + 409 = 1636
Step 5: 1636 + 409 = 2045

So, 409*5 = 2045