WordPress Transfer

I have a built WordPress site on a dummy server and domain name. I need to transfer the entire site exactly how it is to a new WordPress installed hosting account and new domain name. I have tried simply exporting the site and installing it to the new location but I get errors due to the size of my site as well as none of the setting match up to the existing site.

I heard of a way to split the .xml file into manageable pieces for WordPress to process but its 470 kb so I would have to break it into thousands of smaller files which seems extremely absurd.

Any help would be extremely appreciated.

Thanks