This is the 2432nd most frequent Russian word.
подробно
In detail.
Here, 'подробно' is used as an adverb to modify the verb 'изучил', indicating the thoroughness of the study.
Он подробно изучил материал перед экзаменом.
He studied the material in detail before the exam.
In this example, 'подробно' acts as an adverb modifying the verb 'расскажите', asking for a detailed explanation.
Пожалуйста, расскажите более подробно о вашем проекте.
Please describe your project in more detail.
Here, 'подробно' modifies the verb 'разберем', suggesting a detailed examination of the matter.