hard to say how much info anyone would need. Maybe start from a general overview but expect questions, not only for clarification but for others to evaluate approaches/suggestions that they might be considering. The number of records required is also fluid as it depends on the problem. Make sure that you can replicate the problem with your test db. At the risk of being too cautious I'll say it again - do NOT run that code on your original db or any db that you might ever need for backup. Make a new copy, give it a name that distinguishes it from any backup that you need to keep and go from there. Also, make sure you post how to replicate the issue. It would be nice if in this copy you removed any protections such as hiding the nav pane, re-enable disabled shortcut keys, remove any password protection (unless it is relevant to the problem), etc.
EDIT - if the db is split, don't forget to upload both parts.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.