Uncle Wang walks along a rectangular field, walking 230 steps along the length and 60 steps along the width. It is known that Uncle Wang walks an average of 0.7 meters per step, if 0.12 kilograms of fertilizer is needed per square meter. Please calculate, how many kilograms of fertilizer do you need to fertilize this land?
王大伯沿一块长方形的地步测，沿着长走了230步，沿着宽走60步．已知王大伯平均每步走0.7米，如果每平方米需施肥0.12千克．请你算一下，这块地需施肥多少千克？
<gadget id="calculator">230 * 0.7</gadget>
<output>161</output>

<gadget id="calculator">60 * 0.7</gadget>
<output>42</output>

<gadget id="calculator">161 * 42 * 0.12</gadget>
<output>811.44</output>

<result>811.44</result>