如何从以微单位表示的给定金额中提取单位和子单位部分？

function extractUnitsAndSubunits(amount) {
  var units = Math.floor(amount / 1000000);
  var subunits = amount % 1000000;

  var unitsString = units.toString();
  var subunitsString = subunits.toString();

  return {
    units: unitsString,
    subunits: subunitsString
  };
}

var amount = 1234567890; // 假设给定的金额为1234567890微单位
var result = extractUnitsAndSubunits(amount);
console.log("单位部分：" + result.units);
console.log("子单位部分：" + result.subunits);