Alright, let's work through 8003 times 8583 step by step
8003 × 8583 = 8583 × (8003)
+ 8583 × 3 which equals 25749
+ 8583 × 00 what gives us 0
+ 8583 × 000 yielding 0
+ 8583 × 8000 that equals 68664000

= 68689749
