I am about to start to process of upgrading our site from DNN 4.9.1.
I've read a lot of articles within these forums but would like a little extra information before I take the plunge.

I understand already that it's best to upgrade in stages, ie. 4.9.1 > 4.9.5 > 5.2.3 > 5.4.4 > 5.5.1 > 5.6.x
I've read your wiki upgrade instructions page, but really lack technical knowledge regarding restore backups, IIS, setting permissions etc.

I'm going to follow the instructions on this page: http://www.dotnetnuke.com/Resources/Wiki/page/Upgrading-DotNetNuke.aspx

#6?
How do I restore the backed up files to a folder on my web server? I've done many manual backups on our local computer and our web host does daily backups.

#7?
I understand that a subdomain will need to be setup within our web hosting control panel - any general pointers would be appreciated.

#8?
Set up permissions? Do I just need to make sure all folders in our filing system have read/write/execute/delete permissions?

#9?
I can manually backup our current database by exporting it into a zipped file in our root folder, is this what is meant? Otherwise how do I duplicate the existing database?

#10
Where and what in the web.config file do I need to change to point to the new database?

#13
Does this mean carefully finding and replacing each folder and/or file with what is currently there?

Apologies for all the questions, but any help would really be appreciated.