Alright, let's work through 6396 times 3943 step by step
6396 × 3943 = 3943 × (6396)
+ 3943 × 6 giving us 23658
+ 3943 × 90 resulting in 354870
+ 3943 × 300 that is equal 1182900
+ 3943 × 6000 which equals 23658000

= 25219428
