Alright, let's work through 1603 times 9792 step by step
1603 × 9792 = 9792 × (1603)
+ 9792 × 3 that is equal 29376
+ 9792 × 00 what gives us 0
+ 9792 × 600 that equals 5875200
+ 9792 × 1000 that is equal 9792000

= 15696576
