Without delay, let's solve this. We've got 130 and we will be multiplying it by 4, that is, adding 130 to itself 4 times.
Step 1: 0 + 130 = 130
Step 2: 130 + 130 = 260
Step 3: 260 + 130 = 390
Step 4: 390 + 130 = 520

So, 130*4 = 520