The document outlines the steps to setup a Magento website with multiple stores:
1. Create categories that will be shared across stores.
2. Setup each website, store, and store view in the Magento admin. Configure the base URLs for each.
3. Configure the server Apache configuration file and .htaccess file to direct each domain to the Magento install and set the appropriate store code and type.
4. Restart Apache. The multiple stores are now setup and accessible at their respective domains from a single Magento backend.