Well, something divided by 0 is infinity is the only case when we use limit. Infinity is not a number, it's the length of a number. ... As we cannot guess the exact number, we consider it as a length of a number or infinity. In normal cases, the value of something divided by 0 has not been set yet, so it's undefined.

What happens if you divide something by 0?

So, that means that this is going to be undefined. So zero divided by zero is undefined.

WHO declared any number divided by zero is infinity?

Euler's Complete Introduction to Algebra (published in German in 1770) has been praised as the most widely published book in the history of algebra. We here include the pages, in German and from an English translation, in which Euler discussed division by zero. He argued that it gives infinity.