Using Partial Views in Umbraco is exactly the same as using Partial Views in a normal MVC project.
Partial views allow you to reuse components between your views (templates).
In this video, we introduce how you can use partial views in the Umbraco CMS.
Written Documentation:
https://docs.umbraco.com/umbraco-cms/...
You can visit the Umbraco Documentation for written guides about Umbraco via this link: https://docs.umbraco.com/