>>214423It isn't though. If you divide 1 by 3 you get an infinite string of threes. There is no 4,and because you divided it, all 3 pieces you divide it into are equivalent. And when you multiply it by 3 you get an infinite string of nines, which is essentially equal to one.
Every time you add another 9 onto the end it approaches 1, and since there are infinite nines, it is equal to its limit, which is 1.