i will not admit to know other germanys election system
but from how i understood it
hitler lost -> got set up as chancellor still despite losing presidency ->got himself unlimited power via chancellor positon -> used that power to help the nazis slowly gained influence -> did well in 1933 election for seats -> president died -> hitler implements himself as fuhrer merging his postion with president (no election)
German elections in that year was a mess because the NSDAP and the Communist party kept getting voted into government and disagreeing or outright fighting
No Max, the point here is that his party was growing at such a rate that Hindenburg had no choice but to give him the chancellor placement, which his voters wanted him to have, and then just half a year later Hitler had the majority of votes