When two numbers are divided, the quotient is 7, the remainder is 8, the divisor is 9, what is the dividend.
两个数相除，商7，余数是8，除数是9，被除数是多少．
<gadget id="calculator">7 * 9</gadget>
<output>63</output>

<gadget id="calculator">63 + 8</gadget>
<output>71</output>

<result>71</result>