Find the difference between the place-value and the face-value of 8 in the numeral 5,86,273.

In the numeral 5,86,273, the digit '8' is in the ten thousands place.

So, its place value is 8 × 10,000 = 80,000.

The face value of a digit is the digit itself.

So, the face value of '8' is 8.

Difference = Place-value - Face-value

Difference = 80,000 − 8

Difference = 79,992

Hence, the difference between the place-value and the face-value of 8 in the numeral 5,86,273 = 79,992.