Sunflowers are planted in a parallelogram field with a base length of 90m and a height of 60m. If each sunflower occupies an average area of 0.25m**2, how many sunflowers can be planted in this field?
一块底边长为90m、高为60m的平行四边形地里种向日葵，如果平均每棵向日葵占地0.25m**2，这块地一共可以种向日葵多少棵？
<gadget id="calculator">60 / 0.25</gadget>
<output>240</output>

<gadget id="calculator">90 * 240</gadget>
<output>21_600</output>

<result>21_600</result>