Without delay, let's solve this. We've got 38 and we will be multiplying it by 12, that is, adding 38 to itself 12 times.
Step 1: 0 + 38 = 38
Step 2: 38 + 38 = 76
Step 3: 76 + 38 = 114
Step 4: 114 + 38 = 152
Step 5: 152 + 38 = 190
Step 6: 190 + 38 = 228
Step 7: 228 + 38 = 266
Step 8: 266 + 38 = 304
Step 9: 304 + 38 = 342
Step 10: 342 + 38 = 380
Step 11: 380 + 38 = 418
Step 12: 418 + 38 = 456

So, 38*12 = 456