No problem, we've got 4254535 and 31689408 to multiply
4254535 × 31689408 = 31689408 × (4254535)
+ 31689408 × 5 what gives us 158447040
+ 31689408 × 30 which equals 950682240
+ 31689408 × 500 what gives us 15844704000
+ 31689408 × 4000 resulting in 126757632000
+ 31689408 × 50000 what gives us 1584470400000
+ 31689408 × 200000 that equals 6337881600000
+ 31689408 × 4000000 that equals 126757632000000

= 134823695465280
