OK, let's work through this together. We're starting with 110 and we're going to multiply it by 6, which means we add 110 to itself 6 times.
Step 1: 0 + 110 = 110
Step 2: 110 + 110 = 220
Step 3: 220 + 110 = 330
Step 4: 330 + 110 = 440
Step 5: 440 + 110 = 550
Step 6: 550 + 110 = 660

So, 110*6 = 660