How did John Quincy Adams win the election of 1824?

In the election 1824, Jackson got the most electoral votes: 99. But he needed 130 to win a majority. The secretary of state, John Quincy Adams, was second. Treasury Secretary William Crawford was third.

JQA supposedly made deals with other politicians in order to get votes in his first election, since they did not have a common vote, and partisan politics were fueled by rising tensions between north and south, especially since the threat posed by Great Britain was over