The chicken farm packs a batch of eggs into boxes. If Type A boxes are used, exactly 800 boxes should be packed, but the number of Type A boxes is insufficient, so all eggs are packed in Type B boxes. It is known that the capacity of each Type B box is (4/5) of that of Type A box, how many Type B boxes are needed?
养鸡场将一批鸡蛋装箱，若用A型箱，正好要装800箱，但A型箱数量不足，全部改用B型箱装．已知每个B型箱的容量是A型箱的(4/5)，需要B型箱多少个？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">800 / (4/5)</gadget>
<output>1_000</output>

<result>1_000</result>