Uncle Tian sold 34 weekly newspapers and some evening papers yesterday. The weekly newspapers were 1.5 yuan each, and the evening papers were 0.8 yuan each. The total collection was 87.8 yuan. How many evening papers did Uncle Tian sell yesterday?
田大爷昨天卖出34份周报和一些晚报，周报每份1.5元，晚报每份0.8元，一共收款87.8元．田大爷昨天卖出多少份晚报？
<gadget id="calculator">1.5 * 34</gadget>
<output>51</output>

<gadget id="calculator">87.8 - 51</gadget>
<output>36.8</output>

<gadget id="calculator">36.8 / 0.8</gadget>
<output>46</output>

<result>46</result>