Without delay, let's solve this. We've got 846 and we will be multiplying it by 3, that is, adding 846 to itself 3 times.
Step 1: 0 + 846 = 846
Step 2: 846 + 846 = 1692
Step 3: 1692 + 846 = 2538

So, 846*3 = 2538