Drupal 8 / Multi-site

General information for the website: Corporate website Kind of development: Customization of existing website Description of every page/module: See more information in notes. Description of requirements/features: Creation of subdomain in Drupal 8 existing website. Extra notes: Techno : Drupal 8 I would like to create a multi-site architecture from an existing website. For instance, we have the main website www.mywebsite.fr, we would like to have the possibility to create plenty of subdomain like www.mywebsite/subdomain . We want you to develop one subdomain, with the corresponding architecture. Then, we will have the architecture for create plenty subdomain in the futur. We don’t want you to develop the template or specific development. The template should be empty, ready-to-use. 
Furthermore, we would like to have a roadmap (a text document) explaining how to create more subdomain in the future and how to update the one you created. (where to update template, etc...) We want to have the same database as the main website (same users and content). 
 Do you think this kind is development is possible for you ?