By Daniel Bates John Elway, the most famous figure in Denver Broncos history, reportedly had the chance to acquire a 20 percent ownership stake in the franchise that he helped build at the end of his career, worth $36 million. He turned it down. Today, with the team officially selling for a record $4.65 billion, Elway’s piece of the Broncos pie would’ve been around $930 million. The Hall of Famer’s name immediately started trending once word got out. “He could have beaten out Bobby Bonilla as best contract ever,” one user replied. “Ouch!” another commented. “And he doubled down on those bad de…