How the position of the decimal point changes in a quotient as you divide by increasing powers of 10

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

The radius of a sphere is 3 inches. which represents the volume of the sphere?