[tex] {2}^{5} \times {2}^{7} \div {2}^{4} \times {3}^{8} \div {6}^{7} [/tex]
[tex] = {2}^{5 + 7 - 4} \times {3}^{8} \div {6}^{7} [/tex]
[tex] = {2}^{8} \times {3}^{8} \div {6}^{7} [/tex]
[tex] = 256 \times 6561 \div 279936[/tex]
[tex] = 1679616 \div 279936[/tex]
[tex] = 6[/tex]