OK, let's work through this together. We're starting with 360 and we're going to multiply it by 12, which means we add 360 to itself 12 times.
Step 1: 0 + 360 = 360
Step 2: 360 + 360 = 720
Step 3: 720 + 360 = 1080
Step 4: 1080 + 360 = 1440
Step 5: 1440 + 360 = 1800
Step 6: 1800 + 360 = 2160
Step 7: 2160 + 360 = 2520
Step 8: 2520 + 360 = 2880
Step 9: 2880 + 360 = 3240
Step 10: 3240 + 360 = 3600
Step 11: 3600 + 360 = 3960
Step 12: 3960 + 360 = 4320

So, 360*12 = 4320