This is the 3481st most frequent Russian word.
процессу
"In Russian, 'процессу' is the dative singular form of 'процесс,' meaning 'process.'"
The word "процессу" is in dative case, indicating the indirect object of the attention, i.e., the process.
Мы уделяем большое внимание процессу обучения.
We pay great attention to the learning process.
Here, "процессу" again appears in dative case, showing the recipient of the changes.
Он внес изменения процессу производства.
He introduced changes to the production process.
In this sentence, "процессу" is in dative case, indicating the entity benefiting from the contribution.