Without delay, let's solve this. We've got 875 and we will be multiplying it by 13, that is, adding 875 to itself 13 times.
Step 1: 0 + 875 = 875
Step 2: 875 + 875 = 1750
Step 3: 1750 + 875 = 2625
Step 4: 2625 + 875 = 3500
Step 5: 3500 + 875 = 4375
Step 6: 4375 + 875 = 5250
Step 7: 5250 + 875 = 6125
Step 8: 6125 + 875 = 7000
Step 9: 7000 + 875 = 7875
Step 10: 7875 + 875 = 8750
Step 11: 8750 + 875 = 9625
Step 12: 9625 + 875 = 10500
Step 13: 10500 + 875 = 11375

So, 875*13 = 11375