Alright, let's work through 2489 times 2123 step by step
2489 × 2123 = 2123 × (2489)
+ 2123 × 9 that results in 19107
+ 2123 × 80 giving us 169840
+ 2123 × 400 that results in 849200
+ 2123 × 2000 which equals 4246000

= 5284147
