Alright, let's work through 17181994 times 17797931 step by step
17181994 × 17797931 = 17797931 × (17181994)
+ 17797931 × 4 that is equal 71191724
+ 17797931 × 90 what gives us 1601813790
+ 17797931 × 900 producing 16018137900
+ 17797931 × 1000 producing 17797931000
+ 17797931 × 80000 yielding 1423834480000
+ 17797931 × 100000 which equals 1779793100000
+ 17797931 × 7000000 resulting in 124585517000000
+ 17797931 × 10000000 producing 177979310000000

= 305803943654414
