In a Ranked Choice Voting election, voters may rank the candidates on the ballot in the order they prefer them: 1, 2, 3, and so on. Then tabulation begins: all 1st choices are counted, and the candidate with the fewest votes is eliminated. If a voter’s 1st choice candidate is eliminated, their vote transfers to their next choice. Candidates with the fewest votes are continually eliminated until there are two candidates remaining. Just as in a runoff election, the candidate with a majority of votes in the final round wins.
Here's a visual representation of how the vote tallying process takes place.