Good morning Ezeh, and thanks for contacting CTB,
"Step by step" depends a lot on where you are located and the educational resources with whom you might consult for guidance in that culture.
Rather than my trying to guess from here what steps to take, I suggest you make contact with educators (and maybe NGOs) in your area. Essentially, you start by locating mentors and reading materials. Ask educators to advise you about teaching methods that work well with adult learners, and librarians about appropriate reading materials. The reading materials will need to be simple at the start, and gradually more difficult as learning progresses.
Talk with teachers in local schools who might offer guidance. Consider establishing an email connection with the education faculty of a university in your area. As you go, be on the lookout for others who can carry on the program if/when you have to move on; and for sources of funding to buy reading materials. It is a good idea to think from the beginning about sustaining your project.
I hope this response is helpful. I very much appreciate your willingness to take on your project. Adult literacy is an important facet of education, and resources will become available to you. Thank you.
