Sure thing! We've got 450 and we're gonna multiply it by 5. That's the same as adding 450 to itself 5 times.
Step 1: 0 + 450 = 450
Step 2: 450 + 450 = 900
Step 3: 900 + 450 = 1350
Step 4: 1350 + 450 = 1800
Step 5: 1800 + 450 = 2250

So, 450*5 = 2250