Ответ:

  1. \(372 \cdot 814 = 372 \cdot (800+14)=297600+5208=302808\).
  2. \(7050 \cdot 608 = 7050 \cdot (600+8)=4230000+56400=4286400\).
  3. \(63280:7=9040\).
  4. \(802000:5=160400\).

Ответ: 302808; 4286400; 9040; 160400.