No problem, we've got 82001752 and 78041747 to multiply
82001752 × 78041747 = 78041747 × (82001752)
+ 78041747 × 2 giving us 156083494
+ 78041747 × 50 that results in 3902087350
+ 78041747 × 700 yielding 54629222900
+ 78041747 × 1000 yielding 78041747000
+ 78041747 × 00000 yielding 0
+ 78041747 × 000000 producing 0
+ 78041747 × 2000000 yielding 156083494000000
+ 78041747 × 80000000 resulting in 6243339760000000

= 6399559983140744
