OK, let's work through this together. We're starting with 277 and we're going to multiply it by 5, which means we add 277 to itself 5 times.
Step 1: 0 + 277 = 277
Step 2: 277 + 277 = 554
Step 3: 554 + 277 = 831
Step 4: 831 + 277 = 1108
Step 5: 1108 + 277 = 1385

So, 277*5 = 1385