Let's get this math done. We have 622 and we're going to multiply it by 3. This is the same as taking 622 and adding it to itself 3 times.
Step 1: 0 + 622 = 622
Step 2: 622 + 622 = 1244
Step 3: 1244 + 622 = 1866

So, 622*3 = 1866