This is the 12213th most frequent Russian word.
инстанциях
"Инстанциях" – "instances" or "levels" (typically referring to levels of authority or courts).
In this sentence, "инстанциях" refers to official or bureaucratic instances or authorities where documents are processed.
Данные документы необходимо предоставить в соответствующих инстанциях.
These documents need to be submitted to the appropriate authorities.
Here, "инстанциях" depicts various official entities or institutions one needs to go through for document processing.
Алексей долго оформлял бумаги, проходя по разным инстанциям.
Alexey spent a long time processing papers, visiting various institutions.
The term "инстанциях" here signifies levels of bureaucratic or legal authority within a hierarchical framework.