Hello there,
According to the formula, [100-94.5*869010], your All India Rank is 47795 approximately. You have not mentioned which branch you want to choose. Analysing the previous year data, you may get seat in some lower NITs like NIT Srinagar, NIT Nagaland, NIT Agartala, etc. Also note that the cut-off rank changes every year depending on the difficulty of the paper, and the number of candidates appearing for it.
You can check the cutoff ranks of all the NITs in the link given below:
https://www.google.com/amp/s/engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches/amp
Hope this answer helps you.
Good luck!!