Is it we can read or search the item in a file sequentially by the position using unix shell script..??

The position i means is: for example..
inside the xxx file, it contain with:
----------------------------------------------------------------------
1200120136420 1210324120 12145123
1200120136420 1210324120 22178210
----------------------------------------------------------------------
position:
12345678901234567890123 4

Then i wanna grep or search for value in position 24 = 0.
like that.. position is count space by space or character or alphanumeric length..