On the planning map of the experimental primary school district, the playground is a rectangle with a length of 28 cm and a width of 22 cm. If the scale of the planning map is (1/400), how many square meters does the playground actually occupy?
在实验小学校区的规划图上，操场是一个长是28厘米，宽是22厘米的长方形，如果规划图的比例尺是(1/400)，那么这个操场的实际占地面积是多少平方米？
<gadget id="calculator">1 / 400</gadget>
<output>1/400 = around 0.0025</output>

<gadget id="calculator">28 / (1/400) / 100</gadget>
<output>112</output>

<gadget id="calculator">22 / (1/400) / 100</gadget>
<output>88</output>

<gadget id="calculator">112 * 88</gadget>
<output>9_856</output>

<result>9_856</result>