Alright, let's work through 88480487 times 12108487 step by step
88480487 × 12108487 = 12108487 × (88480487)
+ 12108487 × 7 that results in 84759409
+ 12108487 × 80 giving us 968678960
+ 12108487 × 400 what gives us 4843394800
+ 12108487 × 0000 resulting in 0
+ 12108487 × 80000 that is equal 968678960000
+ 12108487 × 400000 what gives us 4843394800000
+ 12108487 × 8000000 that results in 96867896000000
+ 12108487 × 80000000 yielding 968678960000000

= 1071364826593169
