Alright, let's work through 3874 times 2589 step by step
3874 × 2589 = 2589 × (3874)
+ 2589 × 4 resulting in 10356
+ 2589 × 70 that is equal 181230
+ 2589 × 800 which equals 2071200
+ 2589 × 3000 what gives us 7767000

= 10029786
