What is 644 Divided by 30 using Long Division?

$$ \begin{array}{rl} & 021 \phantom{00} \leftarrow Quotient \\[-4pt] Divisor \rightarrow \phantom{0} 30 \kern-1ex & \kern-1ex \enclose{longdiv}{644} \phantom{0} \leftarrow Dividend \\[-4pt] & \phantom{} \underline{\phantom{} 0\phantom{0}} \\[-4pt] & \phantom{} 6 4 \\[-4pt] & \phantom{} \underline{\phantom{} 60\phantom{0}} \\[-4pt] & \phantom{0} 4 4 \\[-4pt] & \phantom{0} \underline{\phantom{} 30\phantom{0}} \\[-4pt] & \phantom{0} 14 \phantom{0} \leftarrow Remainder \\[-4pt] \end{array} $$