Alright, let's work through 8796489 times 9996140 step by step
8796489 × 9996140 = 9996140 × (8796489)
+ 9996140 × 9 that equals 89965260
+ 9996140 × 80 producing 799691200
+ 9996140 × 400 yielding 3998456000
+ 9996140 × 6000 that equals 59976840000
+ 9996140 × 90000 that equals 899652600000
+ 9996140 × 700000 yielding 6997298000000
+ 9996140 × 8000000 yielding 79969120000000

= 87930935552460
