Let's get this math done. We have 617 and we're going to multiply it by 4. This is the same as taking 617 and adding it to itself 4 times.
Step 1: 0 + 617 = 617
Step 2: 617 + 617 = 1234
Step 3: 1234 + 617 = 1851
Step 4: 1851 + 617 = 2468

So, 617*4 = 2468