Alright, let's work through 2907 times 3603 step by step
2907 × 3603 = 3603 × (2907)
+ 3603 × 7 producing 25221
+ 3603 × 00 that is equal 0
+ 3603 × 900 producing 3242700
+ 3603 × 2000 which equals 7206000

= 10473921
