$$4 \frac{ 7777777 }{ \frac{ 8888888 }{ \frac{ 9999999 }{ 4 } } }$$
$\frac{69999993}{8}=8749999.125$
$$4\times \frac{7777777\times \frac{9999999}{4}}{8888888}$$
$$4\times \frac{\frac{7777777\times 9999999}{4}}{8888888}$$
$$4\times \frac{\frac{77777762222223}{4}}{8888888}$$
$$4\times \frac{77777762222223}{4\times 8888888}$$
$$4\times \frac{77777762222223}{35555552}$$
$$4\times \frac{69999993}{32}$$
$$\frac{4\times 69999993}{32}$$
$$\frac{279999972}{32}$$
$$\frac{69999993}{8}$$
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$\frac{3 ^ {2} \cdot 7 \cdot 239 \cdot 4649}{2 ^ {3}} = 8749999\frac{1}{8} = 8749999.125$
