Question: A piece of wood is 6.4 m long and must be cut into short lengths of 0.36m. What length is left over?
You want to know how many times 0.36m can be divided into 6.4m, as a whole number.
6.4/0.36 = 17.777...
So 0.36m divides 17 times into 6.4m with a bit left over (Bit left over is actually 0.28m)
Answer: Length left over is 0.28m