Let's roll up our sleeves and solve this. We have 273 and we're going to multiply it by 5, essentially adding 273 to itself 5 times.
Step 1: 0 + 273 = 273
Step 2: 273 + 273 = 546
Step 3: 546 + 273 = 819
Step 4: 819 + 273 = 1092
Step 5: 1092 + 273 = 1365

So, 273*5 = 1365