Without delay, let's solve this. We've got 204 and we will be multiplying it by 7, that is, adding 204 to itself 7 times.
Step 1: 0 + 204 = 204
Step 2: 204 + 204 = 408
Step 3: 408 + 204 = 612
Step 4: 612 + 204 = 816
Step 5: 816 + 204 = 1020
Step 6: 1020 + 204 = 1224
Step 7: 1224 + 204 = 1428

So, 204*7 = 1428