Let's calculate 5432 x 3902
5432 × 3902 = 3902 × (5432)
+ 3902 × 2 that equals 7804
+ 3902 × 30 that is equal 117060
+ 3902 × 400 that is equal 1560800
+ 3902 × 5000 that is equal 19510000

= 21195664
