As an aside, it was Hitler’s original intention (as I recall reading history) to win the Presidency in order to dismantle the Weimar Republic from the top down. Hindenburg stood in the way and had little regard for Hitler, who he viewed as an incompetent Corporal of World War I and a gasbag.
Too bad Hindenburg didn’t stand his ground instead of allowing himself to be pressured into naming Hitler to the Chancellor’s position.
He was on the ballot, but he never expected to win the Presidency outright - he wanted to see his party become the central bloc in the parliament, so that he would be pulling the strings.
That is why President Hindenburg appointed him Chancellor in 1933.
It was a little more complicated than that.