Alright, let's work through 3132 times 6439 step by step
3132 × 6439 = 6439 × (3132)
+ 6439 × 2 that equals 12878
+ 6439 × 30 which equals 193170
+ 6439 × 100 that is equal 643900
+ 6439 × 3000 producing 19317000

= 20166948
