Alright, let's work through 42121982 times 95721675 step by step
42121982 × 95721675 = 95721675 × (42121982)
+ 95721675 × 2 that results in 191443350
+ 95721675 × 80 resulting in 7657734000
+ 95721675 × 900 what gives us 86149507500
+ 95721675 × 1000 giving us 95721675000
+ 95721675 × 20000 that results in 1914433500000
+ 95721675 × 100000 that results in 9572167500000
+ 95721675 × 2000000 producing 191443350000000
+ 95721675 × 40000000 what gives us 3828867000000000

= 4031986671359850
