Alright, let's work through 8488 times 9874 step by step
8488 × 9874 = 9874 × (8488)
+ 9874 × 8 that is equal 78992
+ 9874 × 80 resulting in 789920
+ 9874 × 400 what gives us 3949600
+ 9874 × 8000 yielding 78992000

= 83810512
