31/7 = 4.4286, 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.
6
4 * 7 + 3 = 31 Hence 4 goes 7 times in 31.
31 exact times and a remainder
3 times, remainder 7
31 ÷ 8 = 3 with remainder 7
4, remainder 3
4 times with 3 over or about 4.43 times.
7 times and then there is 3 left over
31 ÷ 5 = 6 with remainder 1
7 with remainder 31.
7 with remainder 31.
31 ÷ 12 = 2 with remainder 7
224/32 = 7