Let's get this math done. We have 28 and we're going to multiply it by 6. This is the same as taking 28 and adding it to itself 6 times.
Step 1: 0 + 28 = 28
Step 2: 28 + 28 = 56
Step 3: 56 + 28 = 84
Step 4: 84 + 28 = 112
Step 5: 112 + 28 = 140
Step 6: 140 + 28 = 168

So, 28*6 = 168