When was the last time you looked at popular vote stats from previous presidential elections? At best you get maybe 60 million voters participating in any one major election. In which election have you seen 250 million voters participating in the popular vote? It has never happened and will never happen.
Since the last Presidential election had 127 million voters you are already wrong. So Trump has 6% of the number of people who voted in 2012. That still doesn't make him overwhelmingly popular.