Alright, let's work through 40661490 times 51939122 step by step
40661490 × 51939122 = 51939122 × (40661490)
+ 51939122 × 0 resulting in 0
+ 51939122 × 90 that is equal 4674520980
+ 51939122 × 400 producing 20775648800
+ 51939122 × 1000 that results in 51939122000
+ 51939122 × 60000 that results in 3116347320000
+ 51939122 × 600000 resulting in 31163473200000
+ 51939122 × 0000000 that is equal 0
+ 51939122 × 40000000 yielding 2077564880000000

= 2111922089811780
