This is the 8966th most frequent Russian word.
разработкой
"Разработкой" means "development" or "design" in English, depending on the context.
Here, 'разработкой' refers to the process of creating or developing new technologies.
Компания занимается разработкой новых технологий.
The company is engaged in the development of new technologies.
In this context, 'разработкой' indicates the ongoing progress or efforts related to the project.
Он доволен разработкой проекта, который он курирует.
He is pleased with the development of the project he is overseeing.
In this sentence, 'разработкой' means the action or process of formulating strategies.