Let's calculate 4739 x 4231
4739 × 4231 = 4231 × (4739)
+ 4231 × 9 that is equal 38079
+ 4231 × 30 that results in 126930
+ 4231 × 700 which equals 2961700
+ 4231 × 4000 resulting in 16924000

= 20050709
