Without delay, let's solve this. We've got 325 and we will be multiplying it by 13, that is, adding 325 to itself 13 times.
Step 1: 0 + 325 = 325
Step 2: 325 + 325 = 650
Step 3: 650 + 325 = 975
Step 4: 975 + 325 = 1300
Step 5: 1300 + 325 = 1625
Step 6: 1625 + 325 = 1950
Step 7: 1950 + 325 = 2275
Step 8: 2275 + 325 = 2600
Step 9: 2600 + 325 = 2925
Step 10: 2925 + 325 = 3250
Step 11: 3250 + 325 = 3575
Step 12: 3575 + 325 = 3900
Step 13: 3900 + 325 = 4225

So, 325*13 = 4225