Sure thing! We've got 520 and we're gonna multiply it by 4. That's the same as adding 520 to itself 4 times.
Step 1: 0 + 520 = 520
Step 2: 520 + 520 = 1040
Step 3: 1040 + 520 = 1560
Step 4: 1560 + 520 = 2080

So, 520*4 = 2080