Without delay, let's solve this. We've got 230 and we will be multiplying it by 15, that is, adding 230 to itself 15 times.
Step 1: 0 + 230 = 230
Step 2: 230 + 230 = 460
Step 3: 460 + 230 = 690
Step 4: 690 + 230 = 920
Step 5: 920 + 230 = 1150
Step 6: 1150 + 230 = 1380
Step 7: 1380 + 230 = 1610
Step 8: 1610 + 230 = 1840
Step 9: 1840 + 230 = 2070
Step 10: 2070 + 230 = 2300
Step 11: 2300 + 230 = 2530
Step 12: 2530 + 230 = 2760
Step 13: 2760 + 230 = 2990
Step 14: 2990 + 230 = 3220
Step 15: 3220 + 230 = 3450

So, 230*15 = 3450