Without delay, let's solve this. We've got 852 and we will be multiplying it by 13, that is, adding 852 to itself 13 times.
Step 1: 0 + 852 = 852
Step 2: 852 + 852 = 1704
Step 3: 1704 + 852 = 2556
Step 4: 2556 + 852 = 3408
Step 5: 3408 + 852 = 4260
Step 6: 4260 + 852 = 5112
Step 7: 5112 + 852 = 5964
Step 8: 5964 + 852 = 6816
Step 9: 6816 + 852 = 7668
Step 10: 7668 + 852 = 8520
Step 11: 8520 + 852 = 9372
Step 12: 9372 + 852 = 10224
Step 13: 10224 + 852 = 11076

So, 852*13 = 11076