We're going to solve 2642 multiplied by 1803
2642 × 1803 = 1803 × (2642)
+ 1803 × 2 what gives us 3606
+ 1803 × 40 that is equal 72120
+ 1803 × 600 resulting in 1081800
+ 1803 × 2000 resulting in 3606000

= 4763526
