No problem, we've got 80666459 and 55541634 to multiply
80666459 × 55541634 = 55541634 × (80666459)
+ 55541634 × 9 yielding 499874706
+ 55541634 × 50 yielding 2777081700
+ 55541634 × 400 that results in 22216653600
+ 55541634 × 6000 that results in 333249804000
+ 55541634 × 60000 producing 3332498040000
+ 55541634 × 600000 that is equal 33324980400000
+ 55541634 × 0000000 that results in 0
+ 55541634 × 80000000 what gives us 4443330720000000

= 4480346941854006
