Sure thing! We've got 115 and we're gonna multiply it by 11. That's the same as adding 115 to itself 11 times.
Step 1: 0 + 115 = 115
Step 2: 115 + 115 = 230
Step 3: 230 + 115 = 345
Step 4: 345 + 115 = 460
Step 5: 460 + 115 = 575
Step 6: 575 + 115 = 690
Step 7: 690 + 115 = 805
Step 8: 805 + 115 = 920
Step 9: 920 + 115 = 1035
Step 10: 1035 + 115 = 1150
Step 11: 1150 + 115 = 1265

So, 115*11 = 1265