What is 309 Divided by 20 using Long Division?

$$ \begin{array}{rl} & 015 \phantom{00} \leftarrow Quotient \\[-4pt] Divisor \rightarrow \phantom{0} 20 \kern-1ex & \kern-1ex \enclose{longdiv}{309} \phantom{0} \leftarrow Dividend \\[-4pt] & \phantom{} \underline{\phantom{} 0\phantom{0}} \\[-4pt] & \phantom{} 3 0 \\[-4pt] & \phantom{} \underline{\phantom{} 20\phantom{0}} \\[-4pt] & \phantom{} 10 9 \\[-4pt] & \phantom{} \underline{\phantom{} 100\phantom{0}} \\[-4pt] & \phantom{00} 9 \phantom{0} \leftarrow Remainder \\[-4pt] \end{array} $$