Without delay, let's solve this. We've got 735 and we will be multiplying it by 7, that is, adding 735 to itself 7 times.
Step 1: 0 + 735 = 735
Step 2: 735 + 735 = 1470
Step 3: 1470 + 735 = 2205
Step 4: 2205 + 735 = 2940
Step 5: 2940 + 735 = 3675
Step 6: 3675 + 735 = 4410
Step 7: 4410 + 735 = 5145

So, 735*7 = 5145