Building up from Sneftel his answer, (I don't have the rep to comment on his answer, so this will do.)
In British English,
It would be Eight-hundred-and-eighty-five
As Sneftel stated,
Eight* is the digit which comes earliest in the alphabet...
You could use -and- between hundreds and tenths, but only in British English.
My previous answer was Eight-hundred-and-five, but as @Untitpoi reminded me that I could use -and- even if there are tenths in the number, Eight-hundred-and-eighty-five would be better. (Which is the same number as Sneftel's answer.)