Alright, let's work through 85245459 times 88351085 step by step
85245459 × 88351085 = 88351085 × (85245459)
+ 88351085 × 9 that equals 795159765
+ 88351085 × 50 producing 4417554250
+ 88351085 × 400 resulting in 35340434000
+ 88351085 × 5000 resulting in 441755425000
+ 88351085 × 40000 what gives us 3534043400000
+ 88351085 × 200000 resulting in 17670217000000
+ 88351085 × 5000000 producing 441755425000000
+ 88351085 × 80000000 yielding 7068086800000000

= 7531528793973015
