Divs tag are converter to parragraph

[JulioMunozc]

If I codign in the HTML view a div tag like
<div class="panel-heading"> <h5 class="panel-title"> <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne" aria-expanded="false" class="collapsed">Collapsible Group Item #1</a> </h5> </div>
And after that the editor view is selected, finding that the format is wrong, so I return to HTML view to check the code, and I find that the editor convert all <div></div> to <p></p>, this happen as well when I set the value directly in the data property and in the editor I enter a new line, in fact I cant continue adding more lines.
I guess that it is an issue, or There is any way to prevent that behviour?
Thanks for the answer and help!!