Without delay, let's solve this. We've got 380 and we will be multiplying it by 11, that is, adding 380 to itself 11 times.
Step 1: 0 + 380 = 380
Step 2: 380 + 380 = 760
Step 3: 760 + 380 = 1140
Step 4: 1140 + 380 = 1520
Step 5: 1520 + 380 = 1900
Step 6: 1900 + 380 = 2280
Step 7: 2280 + 380 = 2660
Step 8: 2660 + 380 = 3040
Step 9: 3040 + 380 = 3420
Step 10: 3420 + 380 = 3800
Step 11: 3800 + 380 = 4180

So, 380*11 = 4180