Alright, let's work through 2189 times 5457 step by step
2189 × 5457 = 5457 × (2189)
+ 5457 × 9 what gives us 49113
+ 5457 × 80 that results in 436560
+ 5457 × 100 that results in 545700
+ 5457 × 2000 giving us 10914000

= 11945373
