Without delay, let's solve this. We've got 347 and we will be multiplying it by 4, that is, adding 347 to itself 4 times.
Step 1: 0 + 347 = 347
Step 2: 347 + 347 = 694
Step 3: 694 + 347 = 1041
Step 4: 1041 + 347 = 1388

So, 347*4 = 1388