Alright, let's work through 19426896 times 84557234 step by step
19426896 × 84557234 = 84557234 × (19426896)
+ 84557234 × 6 what gives us 507343404
+ 84557234 × 90 which equals 7610151060
+ 84557234 × 800 which equals 67645787200
+ 84557234 × 6000 that results in 507343404000
+ 84557234 × 20000 which equals 1691144680000
+ 84557234 × 400000 yielding 33822893600000
+ 84557234 × 9000000 resulting in 761015106000000
+ 84557234 × 10000000 that is equal 845572340000000

= 1642684590965664
