Alright, let's work through 79325011 times 19991919 step by step
79325011 × 19991919 = 19991919 × (79325011)
+ 19991919 × 1 that equals 19991919
+ 19991919 × 10 resulting in 199919190
+ 19991919 × 000 giving us 0
+ 19991919 × 5000 that results in 99959595000
+ 19991919 × 20000 that results in 399838380000
+ 19991919 × 300000 producing 5997575700000
+ 19991919 × 9000000 which equals 179927271000000
+ 19991919 × 70000000 that equals 1399434330000000

= 1585859194586109
