Sure thing, let's get straight to it. We start with 456 and we're going to multiply it by 4, which means adding 456 to itself 4 times.
Step 1: 0 + 456 = 456
Step 2: 456 + 456 = 912
Step 3: 912 + 456 = 1368
Step 4: 1368 + 456 = 1824

So, 456*4 = 1824