Alright, let's work through 42420379 times 47190365 step by step
42420379 × 47190365 = 47190365 × (42420379)
+ 47190365 × 9 which equals 424713285
+ 47190365 × 70 that results in 3303325550
+ 47190365 × 300 that is equal 14157109500
+ 47190365 × 0000 that is equal 0
+ 47190365 × 20000 that results in 943807300000
+ 47190365 × 400000 that results in 18876146000000
+ 47190365 × 2000000 which equals 94380730000000
+ 47190365 × 40000000 that results in 1887614600000000

= 2001833168448335
