$$2+74+(.3\times65)\div8=$$
$78.4375$
$$76+\frac{0.3\times 65}{8}$$
$$76+\frac{19.5}{8}$$
$$76+\frac{195}{80}$$
$$76+\frac{39}{16}$$
$$\frac{1216}{16}+\frac{39}{16}$$
$$\frac{1216+39}{16}$$
$$\frac{1255}{16}$$
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$\frac{5 \cdot 251}{2 ^ {4}} = 78\frac{7}{16} = 78.4375$
