Alright, let's work through 797981 times 52329820 step by step
797981 × 52329820 = 52329820 × (797981)
+ 52329820 × 1 that equals 52329820
+ 52329820 × 80 that results in 4186385600
+ 52329820 × 900 that equals 47096838000
+ 52329820 × 7000 yielding 366308740000
+ 52329820 × 90000 that results in 4709683800000
+ 52329820 × 700000 yielding 36630874000000

= 41758202093420
