Alright, let's work through 97672307 times 85700137 step by step
97672307 × 85700137 = 85700137 × (97672307)
+ 85700137 × 7 yielding 599900959
+ 85700137 × 00 that equals 0
+ 85700137 × 300 that results in 25710041100
+ 85700137 × 2000 giving us 171400274000
+ 85700137 × 70000 yielding 5999009590000
+ 85700137 × 600000 producing 51420082200000
+ 85700137 × 7000000 which equals 599900959000000
+ 85700137 × 90000000 that is equal 7713012330000000

= 8370530091006059
