No problem, we've got 80135434 and 66302290 to multiply
80135434 × 66302290 = 66302290 × (80135434)
+ 66302290 × 4 that results in 265209160
+ 66302290 × 30 resulting in 1989068700
+ 66302290 × 400 giving us 26520916000
+ 66302290 × 5000 producing 331511450000
+ 66302290 × 30000 that equals 1989068700000
+ 66302290 × 100000 that results in 6630229000000
+ 66302290 × 0000000 that is equal 0
+ 66302290 × 80000000 that equals 5304183200000000

= 5313162784343860
