As said, these are 2 different things.
You can do an archiving project and there is no need at all to think about number ranges
Archiving does not affect number ranges.
Contrary archiving may get in trouble itself if you archive a record with a number that was already archived, because you then get the same document number twice into info structure and you get a dump. The note 781802 explains already what you need to do to avoid this. This means as well, if you already know that number ranges have been reset after the last archiving that you you need to follow the approach from the note.
Number ranges are usually defined in the very beginning of a SAP implementation project, and hopefully you have some experienced consultants at that time who can explain what you have to consider by defining the ranges as there is much more to be considered than just reuse of number ranges after archiving.