A road is 8,000 meters long, and a total of 640 meters has been repaired in the first 8 days. According to this calculation, how many days are left? (answer with ratio)
一条路长8000米，前8天共修640米，照这样计算，剩下的还需多少天？(用比例解答)
<gadget id="calculator">8_000 - 640</gadget>
<output>7_360</output>

<gadget id="calculator">640 / 8</gadget>
<output>80</output>

<gadget id="calculator">7_360 / 80</gadget>
<output>92</output>

<result>92</result>