12 inches =  1 foot
         3 feet   =  1 yard
        36 inches =  1 yard

   1) Convert 77 inches into feet and inches:

     First we get as many feet out of 77 inches as possible (77 / 12 = 6 r5)
     and the remainder is the number of leftover inches.

       ANSWER: 6 feet, 5 inches

   2) Convert 77 inches into yards and inches:

     First we get as many yards out of 77 as possible (77 / 36 = 2 r5)
     and the remainder is the number of leftover inches.

       ANSWER: 2 yards, 5 inches

   3) Convert 86 inches into yards, feet, and inches:

        i) Yards ( 86 / 36 = 2 r14 ) Take yards out of 86.
       ii) Feet  ( 14 / 12 = 1 r2 )  Take feet out of leftover inches.
 
       ANSWER: 2 yards, 1 foot, 2 inches