How do I replace the starter?

It looks like you need to undo the steering shaft to remove it. Here is a generic guide to help you see what you will be in for when doing the job and I have included how to do the job step by step in the images below for your car.

https://www.2carpros.com/articles/how-to-replace-a-starter-motor

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.