Alright, let's work through 88851199 times 88591479 step by step
88851199 × 88591479 = 88591479 × (88851199)
+ 88591479 × 9 yielding 797323311
+ 88591479 × 90 giving us 7973233110
+ 88591479 × 100 yielding 8859147900
+ 88591479 × 1000 resulting in 88591479000
+ 88591479 × 50000 resulting in 4429573950000
+ 88591479 × 800000 that results in 70873183200000
+ 88591479 × 8000000 yielding 708731832000000
+ 88591479 × 80000000 that results in 7087318320000000

= 7871459130333321
