Alright, let's work through 79121739 times 17888074 step by step
79121739 × 17888074 = 17888074 × (79121739)
+ 17888074 × 9 that is equal 160992666
+ 17888074 × 30 which equals 536642220
+ 17888074 × 700 resulting in 12521651800
+ 17888074 × 1000 resulting in 17888074000
+ 17888074 × 20000 what gives us 357761480000
+ 17888074 × 100000 that is equal 1788807400000
+ 17888074 × 9000000 giving us 160992666000000
+ 17888074 × 70000000 what gives us 1252165180000000

= 1415335522240686
