Alright, let's work through 40841279 times 21771539 step by step
40841279 × 21771539 = 21771539 × (40841279)
+ 21771539 × 9 that results in 195943851
+ 21771539 × 70 yielding 1524007730
+ 21771539 × 200 that equals 4354307800
+ 21771539 × 1000 producing 21771539000
+ 21771539 × 40000 that results in 870861560000
+ 21771539 × 800000 which equals 17417231200000
+ 21771539 × 0000000 what gives us 0
+ 21771539 × 40000000 which equals 870861560000000

= 889177498558381
