Dividing a column into N equal groups by value

Say I have a column with values:

23
24
25
66
67
84
81
85

I want to divide this into N groups, say N right now is 4.

23,1
24,1
25,2
66,2
67,3
84,3
81,4
85,4

I actually need to divide around 30k sorted values into groups 1 to 99; each with equal number of elements.

Any quick way to do this in Excel?