This is the 2444th most frequent Turkish word.
işlemlerini
"Their processes" or "their operations."
Here, 'işlemlerini' refers to 'transactions' in the context of completing financial operations.
Banka işlemlerini tamamladıktan sonra eve döneceğim.
After completing the bank transactions, I will return home.
Here, 'işlemlerini' means 'procedures', specifically associated with administrative steps in registering for an activity.
Öğrenci, kayıt işlemlerini eksiksiz tamamladı.
The student completed the registration procedures without errors.
In this case, 'işlemlerini' denotes 'processes' relating to production work in a company.