When Xiao Ming was doing a divisor problem of 9, he reversed the number of units and tens of the dividend, and the resulting quotient was 2. What is the correct quotient?
小明在做一道除数是9的题时，把被除数的个位数与十位数字写反了，结果除得的商是2，正确的商是多少？
<gadget id="calculator">81 / 9</gadget>
<output>9</output>

<result>9</result>