Let's get this math done. We have 764 and we're going to multiply it by 6. This is the same as taking 764 and adding it to itself 6 times.
Step 1: 0 + 764 = 764
Step 2: 764 + 764 = 1528
Step 3: 1528 + 764 = 2292
Step 4: 2292 + 764 = 3056
Step 5: 3056 + 764 = 3820
Step 6: 3820 + 764 = 4584

So, 764*6 = 4584