Well that is where research and doing a post, you just may provide the first resource on the entire web answering your question. Utmostly, converting steem to bitcoin is always easy. So you simply need a bitcoin wallet that affiliates with banks in Uganda or have a bitcoin ATM sent you or look for stores where bitcoin is sold or have a trusted person, send you cash using western union etc. I don't know if remitano covers Uganda. @oluwoleolaide knows better. Try payza, or skrill. i am sure they cover Uganda