Simple calculation: 1234*4326+2468*2837.
简便计算：1234*4326+2468*2837．
<gadget id="calculator">1_234 * 4_326</gadget>
<output>5_338_284</output>

<gadget id="calculator">2_468 * 2_837</gadget>
<output>7_001_716</output>

<gadget id="calculator">5_338_284 + 7_001_716</gadget>
<output>12_340_000</output>

<result>12_340_000</result>