You write eight hundred fifty dollars as $850. In words, it is spelled out as "eight hundred fifty dollars." Make sure to use the dollar sign and the correct number format when writing it numerically.
six hundred fifty-eight
858,000,000
fifty-eight million, eight hundred and two thousand, one hundred and fifty-one
150,856
4850
six hundred fifty-eight
858,000,000
fifty-eight million, eight hundred and two thousand, one hundred and fifty-one
150,856
Eight hundred fifty-one thousandths
4850
5,800,000,000,000
Eight hundred fifty thousand.
Six hundred fifty-eight.
Six hundred fifty-eight ten-thousandths.
158,000 = one hundred fifty-eight thousand.
Three hundred fifty thousand fifty eight