A classroom is 12 meters long and 8.4 meters wide, and the floor is paved with square bricks with a side length of 0.3 meters. How many square bricks are needed?
一间教室长12米，宽8.4米，用边长是0.3米的方砖铺地，需要方砖多少块？
<gadget id="calculator">0.3 * 0.3</gadget>
<output>0.09</output>

<gadget id="calculator">8.4 / 0.09</gadget>
<output>93.333333</output>

<gadget id="calculator">12 * 93.333333</gadget>
<output>1_119.999996</output>

<result>1_119.999996</result>