How can I effectively play a B flat dominant 7th chord on the piano?

To play a B flat dominant 7th chord on the piano, place your left hand thumb on B flat, your index finger on D, your middle finger on F, and your pinky on A flat. In your right hand, play the notes D, F, A flat, and B flat using your thumb, index finger, middle finger, and pinky respectively. Play all the notes together to create the B flat dominant 7th chord.