Xiao Ming borrowed a 357-page storybook from the library for a week. How many pages does Xiao Ming read on average every day before he can return it on time?
小明到图书室借了一本共357页的故事书，借阅时间是一周．小明平均每天至少看多少页才能按期归还？
<gadget id="calculator">357 / 7</gadget>
<output>51</output>

<result>51</result>