Let's roll up our sleeves and solve this. We have 713 and we're going to multiply it by 6, essentially adding 713 to itself 6 times.
Step 1: 0 + 713 = 713
Step 2: 713 + 713 = 1426
Step 3: 1426 + 713 = 2139
Step 4: 2139 + 713 = 2852
Step 5: 2852 + 713 = 3565
Step 6: 3565 + 713 = 4278

So, 713*6 = 4278