-- Rounded to the nearest ten, hundred, or thousand,
845,001 becomes 845,000 .
-- Rounded to the nearest ten thousand, 845,001 becomes 850,000 .
-- Rounded to the nearest hundred thousand, 845,001 becomes 800,000 .
-- Rounded to the nearest million, 845,001 becomes 1,000,000 .
-- Rounded to the nearest ten million or any higher order of magnitude,
845,001 becomes zero.
