In the number series 456879302000100134784998, if every digit is changed with the next number as per the number series and 9 will change to 0, then how many 9 are there in the new series?

The new series has 3 nines.

Each digit is raised by 1, and 9 becomes 0.

A new 9 appears only where the original digit is 8.

The number 456879302000100134784998 has three 8s.

So the new series contains three 9s.