No problem, we've got 81945373 and 67147142 to multiply
81945373 × 67147142 = 67147142 × (81945373)
+ 67147142 × 3 producing 201441426
+ 67147142 × 70 giving us 4700299940
+ 67147142 × 300 giving us 20144142600
+ 67147142 × 5000 resulting in 335735710000
+ 67147142 × 40000 which equals 2685885680000
+ 67147142 × 900000 giving us 60432427800000
+ 67147142 × 1000000 that is equal 67147142000000
+ 67147142 × 80000000 resulting in 5371771360000000

= 5502397597073966
