No problem, we've got 75121942 and 72042337 to multiply
75121942 × 72042337 = 72042337 × (75121942)
+ 72042337 × 2 yielding 144084674
+ 72042337 × 40 that results in 2881693480
+ 72042337 × 900 what gives us 64838103300
+ 72042337 × 1000 giving us 72042337000
+ 72042337 × 20000 yielding 1440846740000
+ 72042337 × 100000 producing 7204233700000
+ 72042337 × 5000000 that results in 360211685000000
+ 72042337 × 70000000 that equals 5042963590000000

= 5411960261658454
