When a number is divided by 9, the quotient is 99 and the remainder is 8. What is the number?
一个数除以9，商是99，余数是8，这个数是多少．
<gadget id="calculator">99 * 9</gadget>
<output>891</output>

<gadget id="calculator">891 + 8</gadget>
<output>899</output>

<result>899</result>