Alright, let's work through 40121246 times 99181616 step by step
40121246 × 99181616 = 99181616 × (40121246)
+ 99181616 × 6 giving us 595089696
+ 99181616 × 40 resulting in 3967264640
+ 99181616 × 200 that results in 19836323200
+ 99181616 × 1000 resulting in 99181616000
+ 99181616 × 20000 that equals 1983632320000
+ 99181616 × 100000 producing 9918161600000
+ 99181616 × 0000000 that equals 0
+ 99181616 × 40000000 giving us 3967264640000000

= 3979290014213536
