Alright, let's work through 8527 times 7958 step by step
8527 × 7958 = 7958 × (8527)
+ 7958 × 7 resulting in 55706
+ 7958 × 20 that is equal 159160
+ 7958 × 500 giving us 3979000
+ 7958 × 8000 that results in 63664000

= 67857866
