14238:7х300= 24436:4х50=

• 14238:7х300 = (14238 ÷ 7) × 300 = 2034 × 300 = 610200
• 24436:4х50 = (24436 ÷ 4) × 50 = 6109 × 50 = 305450

Answers: 610200 and 305450.