Alright, let's work through 42118256 times 71528399 step by step
42118256 × 71528399 = 71528399 × (42118256)
+ 71528399 × 6 yielding 429170394
+ 71528399 × 50 that is equal 3576419950
+ 71528399 × 200 that results in 14305679800
+ 71528399 × 8000 that equals 572227192000
+ 71528399 × 10000 what gives us 715283990000
+ 71528399 × 100000 producing 7152839900000
+ 71528399 × 2000000 resulting in 143056798000000
+ 71528399 × 40000000 yielding 2861135960000000

= 3012651420352144
