On the floor of a room with a length of 8 meters and a width of 6 meters, floor tiles with a side length of 4 decimeters are laid. How many such floor tiles are needed in total?
在一块长8米，宽是6米的房间地面上，铺上边长是4分米的地板砖，一共需要多少这样的地砖？
<gadget id="calculator">4 / 10</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) * (2/5)</gadget>
<output>4/25 = around 0.16</output>

<gadget id="calculator">6 / (4/25)</gadget>
<output>75/2 = around 37.5</output>

<gadget id="calculator">8 * (75/2)</gadget>
<output>300</output>

<result>300</result>