Diaoyu Island and its affiliated islands have been China's territory since ancient times. The total area of Diaoyu Island and its affiliated islands is 630 hectares, and the area of football field is about 0.7 hectares. How many football fields is the total area of Diaoyu Island and its affiliated islands?
钓鱼岛及其附属岛屿自古以来就是中国的领土．钓鱼岛及其附属岛屿的总面积是630公顷，足球场面积约是0.7公顷．钓鱼岛及其附属岛屿总面积有几个足球场那么大？
<gadget id="calculator">630 / 0.7</gadget>
<output>900</output>

<result>900</result>