OK, let's crack this. We're given 268 and our task is to multiply it by 6. Essentially, we'll be adding 268 to itself 6 times.
Step 1: 0 + 268 = 268
Step 2: 268 + 268 = 536
Step 3: 536 + 268 = 804
Step 4: 804 + 268 = 1072
Step 5: 1072 + 268 = 1340
Step 6: 1340 + 268 = 1608

So, 268*6 = 1608