BigNum:div(x)
Update a BigNum value by dividing it by x, where x can be
a string, a Lua number, or another BigNum value.
Using BigNum:div(x) is approximately 50% faster than using "x = x /
y" because it does not create a new BigNum value, instead it updates the
already existing BigNum.
Example
x = BigNum.new("98298398234.989823")
x:div(1000)