Fill In The Long Division

\[ \LARGE{ \require{enclose} \begin{array}{rlll} \phantom{0}\ \boxed{\phantom{0}} \ \boxed{\phantom{0}} && \\[-3pt] \boxed{\phantom0} \ \boxed{7} \ \enclose{longdiv}{\boxed{\phantom0} \ \boxed{\phantom0} \ \boxed{\phantom{0}} }&& \\[-3pt] \underline{\boxed6 \ \boxed{\phantom0} \phantom0 \phantom0} && \\[-3pt] \boxed{5} \ \boxed{\phantom{0}} && \\[-2pt] \underline{\boxed{\phantom{0}} \ \boxed{4}} && \\[-2pt] \boxed{\phantom0} \ \boxed{\phantom0} && \\[-2pt] \end{array} } \]

Above shows a long division. What is the sum of values of all the missing digits?