Alright, let's work through 18451816 times 79722439 step by step
18451816 × 79722439 = 79722439 × (18451816)
+ 79722439 × 6 resulting in 478334634
+ 79722439 × 10 that results in 797224390
+ 79722439 × 800 resulting in 63777951200
+ 79722439 × 1000 that is equal 79722439000
+ 79722439 × 50000 producing 3986121950000
+ 79722439 × 400000 producing 31888975600000
+ 79722439 × 8000000 that results in 637779512000000
+ 79722439 × 10000000 that is equal 797224390000000

= 1471023775499224
