When Xiao Ming calculated □*9, he mistakenly regarded 9 as 6, and the result was 42. What is the correct result?
小明在计算□*9时，错将9看成6，结果得42，正确的结果是多少．
<gadget id="calculator">42 / 6</gadget>
<output>7</output>

<gadget id="calculator">7 * 9</gadget>
<output>63</output>

<result>63</result>