Alright, let's work through 42101691 times 35942521 step by step
42101691 × 35942521 = 35942521 × (42101691)
+ 35942521 × 1 yielding 35942521
+ 35942521 × 90 resulting in 3234826890
+ 35942521 × 600 which equals 21565512600
+ 35942521 × 1000 resulting in 35942521000
+ 35942521 × 00000 that equals 0
+ 35942521 × 100000 what gives us 3594252100000
+ 35942521 × 2000000 that equals 71885042000000
+ 35942521 × 40000000 resulting in 1437700840000000

= 1513240912903011
