Level 88
I'm not sure if you can even do it in a query. You can probably do a subquery where you do a count based on the items that are not in your previous list. I personally never created a query like that.
I would handle this differently by simply querying the top 10 and also querying the count of the total items. Then you can use the collection methods to calculate the correct number of results
$totalScreens = Screens::count();
$screens = Screens::orderBy('visits')->limit(10)->get();
$others = $totalScreens - $screens->sum('visits');