Let's roll up our sleeves and solve this. We have 581 and we're going to multiply it by 5, essentially adding 581 to itself 5 times.
Step 1: 0 + 581 = 581
Step 2: 581 + 581 = 1162
Step 3: 1162 + 581 = 1743
Step 4: 1743 + 581 = 2324
Step 5: 2324 + 581 = 2905

So, 581*5 = 2905