Let's get this math done. We have 685 and we're going to multiply it by 6. This is the same as taking 685 and adding it to itself 6 times.
Step 1: 0 + 685 = 685
Step 2: 685 + 685 = 1370
Step 3: 1370 + 685 = 2055
Step 4: 2055 + 685 = 2740
Step 5: 2740 + 685 = 3425
Step 6: 3425 + 685 = 4110

So, 685*6 = 4110