$$6\cdot7\frac{3}{4}\times2=$$
$93$
$$6\times \frac{28+3}{4}\times 2$$
$$6\times \frac{31}{4}\times 2$$
$$\frac{6\times 31}{4}\times 2$$
$$\frac{186}{4}\times 2$$
$$\frac{93}{2}\times 2$$
$$93$$
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$3\times 31$
