If you try to divide any number by 0 on your calculator, it displays an ERROR. Try it with 1/0, 10,000/0 or even 0/0. Is that normal?
It will tell you the truth about it: it is completely normal. This is in the theory of division in maths and has something to do woth the multiplication by 0.
What is the problem? You should remember first that the division is the reverse operation of the multiplication: a/b is the number c so that b x c = a. For instance, 6/2=3, because 2 x 3 = 6.