When Ding Ding calculated the division, he wrote the divisor 23 as 32. The resulting quotient was 21 and the remainder was 18. What is the correct quotient?
丁丁在计算除法时，把除数23写成了32，结果得到的商为21，余数是18，正确的商是多少？
<gadget id="calculator">32 * 21</gadget>
<output>672</output>

<gadget id="calculator">672 + 18</gadget>
<output>690</output>

<gadget id="calculator">690 / 23</gadget>
<output>30</output>

<result>30</result>