No problem, we've got 89505727 and 66909386 to multiply
89505727 × 66909386 = 66909386 × (89505727)
+ 66909386 × 7 that equals 468365702
+ 66909386 × 20 what gives us 1338187720
+ 66909386 × 700 giving us 46836570200
+ 66909386 × 5000 which equals 334546930000
+ 66909386 × 00000 that results in 0
+ 66909386 × 500000 that results in 33454693000000
+ 66909386 × 9000000 producing 602184474000000
+ 66909386 × 80000000 producing 5352750880000000

= 5988773237053622
