Xiaohong reads a 198-page story book, and reads 54 pages in 3 days. According to this calculation, how many days will it take to finish this book?
小红看一本198页故事书，3天看了54页，照这样计算，要看完这本书，还需几天？
<gadget id="calculator">198 - 54</gadget>
<output>144</output>

<gadget id="calculator">54 / 3</gadget>
<output>18</output>

<gadget id="calculator">144 / 18</gadget>
<output>8</output>

<result>8</result>