Let's roll up our sleeves and solve this. We have 911 and we're going to multiply it by 5, essentially adding 911 to itself 5 times.
Step 1: 0 + 911 = 911
Step 2: 911 + 911 = 1822
Step 3: 1822 + 911 = 2733
Step 4: 2733 + 911 = 3644
Step 5: 3644 + 911 = 4555

So, 911*5 = 4555