Alright, let's work through 6699 times 9503 step by step
6699 × 9503 = 9503 × (6699)
+ 9503 × 9 giving us 85527
+ 9503 × 90 what gives us 855270
+ 9503 × 600 that equals 5701800
+ 9503 × 6000 that is equal 57018000

= 63660597
