Ответ:

  1. \(840\,000 : 60 = 14\,000\);
  2. \(72\,000 : 300 = 240\);
  3. \(420\,000 : 7000 = 60\);
  4. \(9600 : 40 = 240\);
  5. \(45\,000 : 50 = 900\);
  6. \(284\,800 : 80 = 3560\).