OK, let's work through this together. We're starting with 7 and we're going to multiply it by 6, which means we add 7 to itself 6 times.
Step 1: 0 + 7 = 7
Step 2: 7 + 7 = 14
Step 3: 14 + 7 = 21
Step 4: 21 + 7 = 28
Step 5: 28 + 7 = 35
Step 6: 35 + 7 = 42

So, 7*6 = 42