Without delay, let's solve this. We've got 301 and we will be multiplying it by 12, that is, adding 301 to itself 12 times.
Step 1: 0 + 301 = 301
Step 2: 301 + 301 = 602
Step 3: 602 + 301 = 903
Step 4: 903 + 301 = 1204
Step 5: 1204 + 301 = 1505
Step 6: 1505 + 301 = 1806
Step 7: 1806 + 301 = 2107
Step 8: 2107 + 301 = 2408
Step 9: 2408 + 301 = 2709
Step 10: 2709 + 301 = 3010
Step 11: 3010 + 301 = 3311
Step 12: 3311 + 301 = 3612

So, 301*12 = 3612