Hello, Sergey. As previous commenters also mentioned, you would not use 'according of'. 'According to' is used when we want to refer to an opinion from somewhere or someone else. It is also used to say 'depending on' or 'in agreement with'. Below are some examples of both uses of the phrase:
1. According to the latest UN report, we need to drastically limit our use of fossil fuels.
2. According to my friend, the party will be on Saturday.
3. The students were placed in groups according to their skill level.
4. The employees were placed in different departments according to their job duties.
I hope this answer helps. If you are interested in taking English lessons, I am a professional teacher on Italki. I am currently accepting new students and would be happy to work with you!