Alright, let's work through 42300815 times 59937800 step by step
42300815 × 59937800 = 59937800 × (42300815)
+ 59937800 × 5 that is equal 299689000
+ 59937800 × 10 which equals 599378000
+ 59937800 × 800 producing 47950240000
+ 59937800 × 0000 producing 0
+ 59937800 × 00000 yielding 0
+ 59937800 × 300000 producing 17981340000000
+ 59937800 × 2000000 that results in 119875600000000
+ 59937800 × 40000000 yielding 2397512000000000

= 2535417789307000
