We're going to solve 42407027 multiplied by 15768410
42407027 × 15768410 = 15768410 × (42407027)
+ 15768410 × 7 that is equal 110378870
+ 15768410 × 20 giving us 315368200
+ 15768410 × 000 yielding 0
+ 15768410 × 7000 yielding 110378870000
+ 15768410 × 00000 resulting in 0
+ 15768410 × 400000 yielding 6307364000000
+ 15768410 × 2000000 which equals 31536820000000
+ 15768410 × 40000000 what gives us 630736400000000

= 668691388617070
