Sure thing! We've got 226 and we're gonna multiply it by 15. That's the same as adding 226 to itself 15 times.
Step 1: 0 + 226 = 226
Step 2: 226 + 226 = 452
Step 3: 452 + 226 = 678
Step 4: 678 + 226 = 904
Step 5: 904 + 226 = 1130
Step 6: 1130 + 226 = 1356
Step 7: 1356 + 226 = 1582
Step 8: 1582 + 226 = 1808
Step 9: 1808 + 226 = 2034
Step 10: 2034 + 226 = 2260
Step 11: 2260 + 226 = 2486
Step 12: 2486 + 226 = 2712
Step 13: 2712 + 226 = 2938
Step 14: 2938 + 226 = 3164
Step 15: 3164 + 226 = 3390

So, 226*15 = 3390