What is 643 Divided by 2 using Long Division?

$$ \begin{array}{rl} & 321 \phantom{00} \leftarrow Quotient \\[-4pt] Divisor \rightarrow \phantom{0} 2 \kern-1ex & \kern-1ex \enclose{longdiv}{643} \phantom{0} \leftarrow Dividend \\[-4pt] & \phantom{} \underline{\phantom{} 6\phantom{0}} \\[-4pt] & \phantom{} 0 4 \\[-4pt] & \phantom{0} \underline{\phantom{} 4\phantom{0}} \\[-4pt] & \phantom{0} 0 3 \\[-4pt] & \phantom{00} \underline{\phantom{} 2\phantom{0}} \\[-4pt] & \phantom{00} 1 \phantom{0} \leftarrow Remainder \\[-4pt] \end{array} $$