Alright, let's work through 9902 times 7759 step by step
9902 × 7759 = 7759 × (9902)
+ 7759 × 2 resulting in 15518
+ 7759 × 00 which equals 0
+ 7759 × 900 yielding 6983100
+ 7759 × 9000 that equals 69831000

= 76829618
