Let's get this math done. We have 394 and we're going to multiply it by 7. This is the same as taking 394 and adding it to itself 7 times.
Step 1: 0 + 394 = 394
Step 2: 394 + 394 = 788
Step 3: 788 + 394 = 1182
Step 4: 1182 + 394 = 1576
Step 5: 1576 + 394 = 1970
Step 6: 1970 + 394 = 2364
Step 7: 2364 + 394 = 2758

So, 394*7 = 2758