Alright, let's work through 41520396 times 20619472 step by step
41520396 × 20619472 = 20619472 × (41520396)
+ 20619472 × 6 resulting in 123716832
+ 20619472 × 90 what gives us 1855752480
+ 20619472 × 300 that results in 6185841600
+ 20619472 × 0000 giving us 0
+ 20619472 × 20000 resulting in 412389440000
+ 20619472 × 500000 producing 10309736000000
+ 20619472 × 1000000 that results in 20619472000000
+ 20619472 × 40000000 producing 824778880000000

= 856128642750912
