There is more than one way into the world of piano playing. Most people take the front door -- formal lessons where you learn to read music, learn the correct technique, practice scales, memorize pieces, and so forth. That's great if you have the time, and certainly the best method for children, but if you are a busy adult with no time for scheduled lessons, there is a back door you can take -- learning chords and how to apply them to your piano playing.
There are many online courses you can take to get you into the backdoor of piano playing -- just use any search engine and type in something like "learn piano chords" and you'll find many courses to help you.
http://www.chordpiano.com/