12/3.55 = 3.38 approx.
You seem not to be aware but you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer.
3
355
14 divided in 355 parts is 0.03944, approx.
7.1
574.6479
177.5
25.3571
355 percent is the same as 355 divided by 100: 355 / 100 = 3.55
322.7273
50.7143
4.9306
39.4444
22