Use square floor tiles with a side length of 25cm to pave a sidewalk with a length of 28 meters and a width of 6 meters. How many such floor tiles are needed at least?
用边长是25cm的正方形地砖铺一段长28米，宽6米的人行路面，至少需要多少块这样的地砖？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) ** 2</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">6 / (1/16)</gadget>
<output>96</output>

<gadget id="calculator">28 * 96</gadget>
<output>2_688</output>

<result>2_688</result>