Alright, let's work through 1872 times 609 step by step
1872 × 609 = 609 × (1872)
+ 609 × 2 resulting in 1218
+ 609 × 70 that equals 42630
+ 609 × 800 that is equal 487200
+ 609 × 1000 that results in 609000

= 1140048
