In mathematics, division by zero is considered undefined. This is because dividing any number by zero does not yield a finite or meaningful result. To understand why, consider what division represents: dividing a number into equal parts. When we attempt to divide by zero, we are essentially trying to find out how many times zero fits into the number, which is an impossible task.
Therefore, when asked to perform the division 28.4 / 0, the operation does not result in a definable answer.
So, the result is not defined.