OK, let's work through this together. We're starting with 249 and we're going to multiply it by 5, which means we add 249 to itself 5 times.
Step 1: 0 + 249 = 249
Step 2: 249 + 249 = 498
Step 3: 498 + 249 = 747
Step 4: 747 + 249 = 996
Step 5: 996 + 249 = 1245

So, 249*5 = 1245