Each blue underlined text is a link to an Apple article, which provides exactly the sort of step-by-step you are seeking.
You can view on another Mac, a PC, or your phone.
At the top of each article, if the procedure is different for different MacOS versions, a drop-down menu allows you to select the article for your version of MacOS.
Apple articles are written by mathematical thinkers. They are as complete as possible, they do not make assumptions or skip any steps, and have been widely reviewed and updated inside Apple before they are ever issued. They are intended for an audience that has little previous experience.
Anything I could write would be poorer than the Apple articles.