No problem, we've got 80004726 and 77938496 to multiply
80004726 × 77938496 = 77938496 × (80004726)
+ 77938496 × 6 what gives us 467630976
+ 77938496 × 20 giving us 1558769920
+ 77938496 × 700 giving us 54556947200
+ 77938496 × 4000 that is equal 311753984000
+ 77938496 × 00000 yielding 0
+ 77938496 × 000000 what gives us 0
+ 77938496 × 0000000 giving us 0
+ 77938496 × 80000000 giving us 6235079680000000

= 6235448017332096
