Can't figure out how to find specific characters in specific columns

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http://www.unix.com – I am trying to find a specific set of characters in a long file. I only want to find the characters in column 265 for 4 bytes. Is there a search for that? I tried cut but couldn't get it to work. Ex. I want to find '9999' in column 265 for 4 bytes. If it is in there, I want it to print out the whole line. Thanks for any advice. (HowTos)