>>1414491To divide is to split the dividend evenly between the divisor.
4/2 is spiting 4 into 2 pieces. All pieces must be equal to each other, therefore 4/2 = 2.
Having 0 as a divisor means you didn't fill in a valid parameter, therefore you are missing the correct number of valid arguments.
4 cannot be split equally into 0 pieces. There is no such thing as dividing by zero therefore.