Without delay, let's solve this. We've got 625 and we will be multiplying it by 3, that is, adding 625 to itself 3 times.
Step 1: 0 + 625 = 625
Step 2: 625 + 625 = 1250
Step 3: 1250 + 625 = 1875

So, 625*3 = 1875