Processing data sent from drupal 7 webform I've inserted a webform in a node's template like so:

&lt;?php print render($content['webform']); ?&gt; 

and created the webform in the admin panel for that page. The form shows up fine and I've styled it correctly. I would now like to know the Drupal way of grabbing the data from the form. Most likely a preprosses function from what I've researched. 

The form is very simple, just an email address and a submit button. I'm good with PHP but still getting used to drupal's backend functionality.  Any help or direction is greatly appreciated. Cheers!
I am not clear about your question. But here is the answer from what i understood.

Try creating a new module and use the hooks to process the data 
http://api.drupalize.me/api/drupal/group/webform_hooks/7