Alright, let's work through 18198334 times 79751689 step by step
18198334 × 79751689 = 79751689 × (18198334)
+ 79751689 × 4 that is equal 319006756
+ 79751689 × 30 that is equal 2392550670
+ 79751689 × 300 yielding 23925506700
+ 79751689 × 8000 giving us 638013512000
+ 79751689 × 90000 yielding 7177652010000
+ 79751689 × 100000 that is equal 7975168900000
+ 79751689 × 8000000 resulting in 638013512000000
+ 79751689 × 10000000 that equals 797516890000000

= 1451347873486126
