Alright, let's work through 9787 times 7958 step by step
9787 × 7958 = 7958 × (9787)
+ 7958 × 7 that equals 55706
+ 7958 × 80 what gives us 636640
+ 7958 × 700 that results in 5570600
+ 7958 × 9000 giving us 71622000

= 77884946
