To convert the improper fraction into a mixed number, you first want to divide the numerator (1000) by the denominator (859):
The quotient, which is 1, will be your whole number part of your mixed number. The remainder, 141, will become the numerator of the fraction part of your mixed number. The original denominator of your improper fraction, 859, is still the denominator of your mixed number. So your mixed number form of your improper fraction is: