Thank you. Number two is a translation by google translate.(German to English)

Number 1 sounds more natural and is something someone would say. As Milly said though, other options are "How long have you been living here?"

Number 1. Number 2 is understandable but sounds like broken English. Number 2 could be possible for situations where the speaker is responding to a situation where someone is giving advice or a command above or beyond their station. Eg. If I was a guest in your family’s home and told a family member not to put their feet on the sofa. In that situation someone could sarcastically respond with sentence 2 (but not 1).

I would say “How long have you been living here?” Or “When did you move here?” Both your sentences make perfect sense but you wouldn’t really hear them, having said that the first sounds slightly more natural to me.