$$241-18+(7\times12-61)\div8$$
$\frac{1807}{8}=225.875$
$$223+\frac{7\times 12-61}{8}$$
$$223+\frac{84-61}{8}$$
$$223+\frac{23}{8}$$
$$\frac{1784}{8}+\frac{23}{8}$$
$$\frac{1784+23}{8}$$
$$\frac{1807}{8}$$
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$\frac{13 \cdot 139}{2 ^ {3}} = 225\frac{7}{8} = 225.875$