Hey,
I am a major in translation-studies, unfortunately there is no simple way for that, there are just many factors to be considered. It would be full time job to begin with, therefore you will be needing whole glossar, terminology and background information etc.. It is hard to handle by a one person. Although my motherlanguage is Turkish so even if I translate the videos it wouldn't worth it in my opinion, simply it won't get attention. But if I translate it German that would be another story.
However don't let it down you, whatever I stated upon is mostly theory, but don't simplify the whole process too. It requires encourage and a strong will, I wish you the best.