Counting Numbers inside text area
 

I am having a problem on how to count numbers inside text area. . . example: In my text area I have 10 numbers. 12, 06, 31, 22, 53, 28, 96, 71, 10, 47 the the program should count how many 0,1,2,3,4....9 excluding the comma. I don't know how to do this inside a text area or a multiline text box....