Since Django is a web development framework and Drupal is a CMS.
Is it possible to use them both together instead of a preferred database on Django like apache?
Maybe that question isn’t clear enough.
Is it possible to use Django and Drupal simultaneously on the server side to provide a better web development solution?
You can use Drupal and Django side-by-side on the same server for different portions of your web site, but they will be entirely separate systems. They cannot interact in any meaningful fashion (except possibly a Django app making web API calls to Drupal, if Drupal has a web API).
Django is a Python-based web development framework. Drupal is a CMS (and framework, through its module system) written in PHP. They really can’t use each other.