Use square bricks with a side length of 3 decimeters to pave a wall with a length of 18 meters and a width of 12 meters. How many such square bricks are needed in total?
用边长是3分米的方砖铺一面长18米，宽12米的墙，一共需要多少块这样的方砖？
<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">100 / 9</gadget>
<output>100/9 = around 11.111111</output>

<gadget id="calculator">18 * 12 * (100/9)</gadget>
<output>2_400</output>

<result>2_400</result>