Ответ:

  1. \(814\,500\,000 : 100 = 8\,145\,000\).
  2. \(814\,500\,000 : 1\,000 = 814\,500\).
  3. \(814\,500\,000 : 100\,000 = 8\,145\).

Ответ: 1) 8 145 000; 2) 814 500; 3) 8 145.