No problem, we've got 7822 and 10222771 to multiply
7822 × 10222771 = 10222771 × (7822)
+ 10222771 × 2 what gives us 20445542
+ 10222771 × 20 that is equal 204455420
+ 10222771 × 800 resulting in 8178216800
+ 10222771 × 7000 which equals 71559397000

= 79962514762
