No problem, we've got 67643744 and 28209729 to multiply
67643744 × 28209729 = 28209729 × (67643744)
+ 28209729 × 4 giving us 112838916
+ 28209729 × 40 resulting in 1128389160
+ 28209729 × 700 yielding 19746810300
+ 28209729 × 3000 which equals 84629187000
+ 28209729 × 40000 yielding 1128389160000
+ 28209729 × 600000 what gives us 16925837400000
+ 28209729 × 7000000 producing 197468103000000
+ 28209729 × 60000000 producing 1692583740000000

= 1908211686785376
