Alright, let's work through 1652 times 1603 step by step
1652 × 1603 = 1603 × (1652)
+ 1603 × 2 that results in 3206
+ 1603 × 50 producing 80150
+ 1603 × 600 that is equal 961800
+ 1603 × 1000 that is equal 1603000

= 2648156
