The divisor is 8, the quotient is 10, what is the dividend when the remainder is the largest
除数是8，商是10，当余数最大时被除数是多少
<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">80 + 7</gadget>
<output>87</output>

<result>87</result>