This is the 10743rd most frequent Russian word.
врачом
"Врачом" means "as a doctor" or "by a doctor" in English.
The word 'врачом' in this sentence is used in the instrumental case to indicate profession.
Я работаю врачом в больнице.
I work as a doctor in a hospital.
In this sentence, 'врачом' indicates the change of state or profession, showing the result of becoming.
Мой брат стал врачом после окончания медицинского университета.
My brother became a doctor after graduating from medical university.
The word 'врачом' is used here in the instrumental case to describe the state or role of the subject.