We're going to solve 42819641 multiplied by 64116757
42819641 × 64116757 = 64116757 × (42819641)
+ 64116757 × 1 which equals 64116757
+ 64116757 × 40 yielding 2564670280
+ 64116757 × 600 which equals 38470054200
+ 64116757 × 9000 producing 577050813000
+ 64116757 × 10000 that equals 641167570000
+ 64116757 × 800000 resulting in 51293405600000
+ 64116757 × 2000000 giving us 128233514000000
+ 64116757 × 40000000 producing 2564670280000000

= 2745456516824237
