Needed to send a demo that was about ten minutes long they gave you all the materials and wanted to teach a lesson over zoom, than HR call then 30 min interview

First part was a teaching demo I had to post online, The second part of it was a call from HR, then the third-fourth part were more interviews. The interview round they ask you many questions and see if you are a good fit for the company. However, the interview process is very lengthy.