Let's roll up our sleeves and solve this. We have 537 and we're going to multiply it by 5, essentially adding 537 to itself 5 times.
Step 1: 0 + 537 = 537
Step 2: 537 + 537 = 1074
Step 3: 1074 + 537 = 1611
Step 4: 1611 + 537 = 2148
Step 5: 2148 + 537 = 2685

So, 537*5 = 2685