For instance, I've got a large wordpress site with many different plug ins installed, I wish to discover the path of some divs to change them. So, my questions is how do i locate them easily, to not by hand explore every folder of my wordpress site? Thanks!

Should you get into Google Chrome and inspect a component, you will see the entire path towards the bottom.

So for example, your hosting here's

html body.question-page div.container div#content div#mainbar div#question.question table tbody tr td.postcell div div.post-text p