De or het routebegeleiding?

The correct Dutch article is:

de routebegeleiding

Rule Words ending in -ing: almost always de. See the rule

How to use routebegeleiding

the routebegeleidingde routebegeleiding
this routebegeleidingdeze routebegeleiding
that routebegeleidingdie routebegeleiding
our routebegeleidingonze routebegeleiding
your routebegeleidingjouw routebegeleiding
every routebegeleidingelke routebegeleiding
which routebegeleiding?welke routebegeleiding?
a big routebegeleiding / the big routebegeleidingeen grote routebegeleiding, de grote routebegeleiding