OK, let's work through this together. We're starting with 366 and we're going to multiply it by 12, which means we add 366 to itself 12 times.
Step 1: 0 + 366 = 366
Step 2: 366 + 366 = 732
Step 3: 732 + 366 = 1098
Step 4: 1098 + 366 = 1464
Step 5: 1464 + 366 = 1830
Step 6: 1830 + 366 = 2196
Step 7: 2196 + 366 = 2562
Step 8: 2562 + 366 = 2928
Step 9: 2928 + 366 = 3294
Step 10: 3294 + 366 = 3660
Step 11: 3660 + 366 = 4026
Step 12: 4026 + 366 = 4392

So, 366*12 = 4392