Without delay, let's solve this. We've got 311 and we will be multiplying it by 13, that is, adding 311 to itself 13 times.
Step 1: 0 + 311 = 311
Step 2: 311 + 311 = 622
Step 3: 622 + 311 = 933
Step 4: 933 + 311 = 1244
Step 5: 1244 + 311 = 1555
Step 6: 1555 + 311 = 1866
Step 7: 1866 + 311 = 2177
Step 8: 2177 + 311 = 2488
Step 9: 2488 + 311 = 2799
Step 10: 2799 + 311 = 3110
Step 11: 3110 + 311 = 3421
Step 12: 3421 + 311 = 3732
Step 13: 3732 + 311 = 4043

So, 311*13 = 4043