Let's calculate 2638 x 7732
2638 × 7732 = 7732 × (2638)
+ 7732 × 8 that is equal 61856
+ 7732 × 30 which equals 231960
+ 7732 × 600 that equals 4639200
+ 7732 × 2000 which equals 15464000

= 20397016
