This is the 11060th most frequent Russian word.
главами
"Главами" means "by chapters" in English.
The word 'главами' here is used to denote the mode of progressing through the book, in a step-by-step manner, chapter by chapter.
Он прочитал книгу главами, уделяя внимание каждому разделу.
He read the book chapter by chapter, paying attention to each section.
'Главами' is used to indicate separated sections or parts, treating each subject as an individual discussion point.
Дискуссия проходила главами, каждая глава посвящалась отдельной теме.
The discussion proceeded in sections, each section was dedicated to a different topic.
Here, 'главами' refers to the structural organization of the content into chapters, emphasizing clarity and separation of content for the reader.