Alright, let's work through 7889 times 9969 step by step
7889 × 9969 = 9969 × (7889)
+ 9969 × 9 which equals 89721
+ 9969 × 80 what gives us 797520
+ 9969 × 800 giving us 7975200
+ 9969 × 7000 which equals 69783000

= 78645441
