No problem, we've got 85172320 and 86442518 to multiply
85172320 × 86442518 = 86442518 × (85172320)
+ 86442518 × 0 yielding 0
+ 86442518 × 20 that equals 1728850360
+ 86442518 × 300 yielding 25932755400
+ 86442518 × 2000 that equals 172885036000
+ 86442518 × 70000 what gives us 6050976260000
+ 86442518 × 100000 what gives us 8644251800000
+ 86442518 × 5000000 that is equal 432212590000000
+ 86442518 × 80000000 which equals 6915401440000000

= 7362509804701760
