It's about eighteen times the number of Teeth in a Great White Shark's Mouth.
In other words, the count of Teeth in a Great White Shark's Mouth is 0.056 times 850.(Carcharodon carcharias) (average; including developing rows)
A Great White Shark has 48 exposed teeth on their upper and lower jaws. Behind these exposed teeth are developing teeth — up to 300 in about 5 rows. The sharks will continuously lose and replace the exposed teeth throughout their lives.
It's about thirty times the number of Countries in the European Union.
In other words, the count of Countries in the European Union is 0.033 times 850.(a.k.a. EU) (2016 figures)
It's about one-fortieth the number of McDonald's Locations in the World.
In other words, the count of McDonald's Locations in the World is 42 times 850.(2015 figures) (approximate)
It's about one-forty-fifth the number of Seats in Fenway Park.
In other words, 850 is 0.022929 times the count of Seats in Fenway Park, and the count of Seats in Fenway Park is 43.613 times that amount.(2013 figures; daytime capacity) (a.k.a. The Cathedral of Boston) (Boston, Massachusetts)
It's about one-fiftieth the number of Seats in The Colosseum.
In other words, the count of Seats in The Colosseum is 50 times 850.(a.k.a. The Coliseum, a.k.a. Flavian Amphitheatre, a.k.a. Amphitheatrum Flavium, a.k.a. Anfiteatro Flavio or Colosseo) (Rome) (estimated)
Built between 70 and 80 AD, The Colosseum was a central attraction of Rome, capable of seating 50,000 spectators for various events including plays, war reenactments, and gladiatorial matches. The structure was estimated to require 100,000 cu. m of stone to construct. It remains the largest amphitheater in the world.
It's about 55 times the number of Living Kings and Queens.
In other words, the count of Living Kings and Queens is 0.018 times 850.(2015 figures) (distinct Monarchs)
As of 2015, the world has fifteen Kings and Queens reigning over 45 countries. Of all these, Queen Elizabeth the II is the only reigning Queen; she has monarchical authority over the sixteen of the Commonwealth nations.
It's about one-sixtieth the number of Seats in New Yankee Stadium.
In other words, 850 is 0.016903 times the count of Seats in New Yankee Stadium, and the count of Seats in New Yankee Stadium is 59.161 times that amount.(2014 figures for 2009 Stadium; seating figures only) (a.k.a. Yankee Stadium, a.k.a. The Stadium, a.k.a. The House that George Built) (South Bronx, New York City, New York)