1. The problem asks for the value of the digit 8 in the number 58317. 2. Each digit in a number has a place value depending on its position. 3. The number 58317 can be broken down as: $$5 \times 10^4 + 8 \times 10^3 + 3 \times 10^2 + 1 \times 10^1 + 7 \times 10^0$$ 4. The digit 8 is in the thousands place, so its value is: $$8 \times 10^3 = 8000$$ 5. Therefore, the value of the 8 in 58317 is 8000.