Alright, let's work through 8649 times 6447 step by step
8649 × 6447 = 6447 × (8649)
+ 6447 × 9 that equals 58023
+ 6447 × 40 what gives us 257880
+ 6447 × 600 yielding 3868200
+ 6447 × 8000 that is equal 51576000

= 55760103
