godan verb (-su), transitive verb
manage to do; get through; handle successfully
Implies successfully carrying out a task or dealing with a situation, often with some effort or skill. Used for both concrete tasks and abstract challenges.
難しい仕事だったが、なんとかやりこなした。
It was a difficult job, but I managed to get through it somehow.
彼は大量の書類を手際よくやりこなす。
He efficiently handles a large volume of documents.