No problem, we've got 10164214 and 79993320 to multiply
10164214 × 79993320 = 79993320 × (10164214)
+ 79993320 × 4 yielding 319973280
+ 79993320 × 10 producing 799933200
+ 79993320 × 200 which equals 15998664000
+ 79993320 × 4000 that results in 319973280000
+ 79993320 × 60000 yielding 4799599200000
+ 79993320 × 100000 that equals 7999332000000
+ 79993320 × 0000000 giving us 0
+ 79993320 × 10000000 that equals 799933200000000

= 813069223050480
