No problem, we've got 75438394 and 52425714 to multiply
75438394 × 52425714 = 52425714 × (75438394)
+ 52425714 × 4 that results in 209702856
+ 52425714 × 90 what gives us 4718314260
+ 52425714 × 300 what gives us 15727714200
+ 52425714 × 8000 which equals 419405712000
+ 52425714 × 30000 which equals 1572771420000
+ 52425714 × 400000 yielding 20970285600000
+ 52425714 × 5000000 that is equal 262128570000000
+ 52425714 × 70000000 giving us 3669799980000000

= 3954911668463316
