OK, let's work through this together. We're starting with 65 and we're going to multiply it by 7, which means we add 65 to itself 7 times.
Step 1: 0 + 65 = 65
Step 2: 65 + 65 = 130
Step 3: 130 + 65 = 195
Step 4: 195 + 65 = 260
Step 5: 260 + 65 = 325
Step 6: 325 + 65 = 390
Step 7: 390 + 65 = 455

So, 65*7 = 455