This is the 7341st most frequent Dutch word.
bijbehorend
Associated or corresponding.
The word 'bijbehorende' is used here as an adjective to describe 'onderdelen', meaning 'parts', indicating that they are associated or correspond to the manual.
Ik heb de handleiding met de bijbehorende onderdelen ontvangen.
I have received the manual with the corresponding parts.
In this sentence, 'bijbehorende' qualifies the noun 'kosten', meaning 'costs', denoting that these costs are related to the quote or offer.
De bijbehorende kosten zijn in de offerte opgenomen.
The associated costs are included in the quote.
Here, 'bijbehorende' is used to modify 'lijst', meaning 'frame', specifying that the frame corresponds to or is related to the photo.