Alright, let's work through 1889 times 7644 step by step
1889 × 7644 = 7644 × (1889)
+ 7644 × 9 giving us 68796
+ 7644 × 80 producing 611520
+ 7644 × 800 that results in 6115200
+ 7644 × 1000 that results in 7644000

= 14439516
