OK, let's crack this. We're given 387 and our task is to multiply it by 6. Essentially, we'll be adding 387 to itself 6 times.
Step 1: 0 + 387 = 387
Step 2: 387 + 387 = 774
Step 3: 774 + 387 = 1161
Step 4: 1161 + 387 = 1548
Step 5: 1548 + 387 = 1935
Step 6: 1935 + 387 = 2322

So, 387*6 = 2322