\(\frac{309}{412}=2014-\frac{a}{512}\)
\(2014-\frac{3}{4}=\frac{a}{512}\)
\(\frac{a}{512}=\frac{8053}{4}\)
\(4a=8053.4\Leftrightarrow a=8053.4:4=8053\)
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