Alright, let's work through 6463 times 5603 step by step
6463 × 5603 = 5603 × (6463)
+ 5603 × 3 yielding 16809
+ 5603 × 60 which equals 336180
+ 5603 × 400 that is equal 2241200
+ 5603 × 6000 that is equal 33618000

= 36212189
