OK, let's crack this. We're given 247 and our task is to multiply it by 4. Essentially, we'll be adding 247 to itself 4 times.
Step 1: 0 + 247 = 247
Step 2: 247 + 247 = 494
Step 3: 494 + 247 = 741
Step 4: 741 + 247 = 988

So, 247*4 = 988