Alright, let's work through 42687413 times 26240207 step by step
42687413 × 26240207 = 26240207 × (42687413)
+ 26240207 × 3 producing 78720621
+ 26240207 × 10 which equals 262402070
+ 26240207 × 400 yielding 10496082800
+ 26240207 × 7000 which equals 183681449000
+ 26240207 × 80000 that equals 2099216560000
+ 26240207 × 600000 resulting in 15744124200000
+ 26240207 × 2000000 what gives us 52480414000000
+ 26240207 × 40000000 producing 1049608280000000

= 1120126553414491
