Alright, let's work through 40414379 times 39021212 step by step
40414379 × 39021212 = 39021212 × (40414379)
+ 39021212 × 9 what gives us 351190908
+ 39021212 × 70 yielding 2731484840
+ 39021212 × 300 resulting in 11706363600
+ 39021212 × 4000 that results in 156084848000
+ 39021212 × 10000 producing 390212120000
+ 39021212 × 400000 producing 15608484800000
+ 39021212 × 0000000 giving us 0
+ 39021212 × 40000000 which equals 1560848480000000

= 1577018050807348
