Alright, let's work through 99715205 times 18034809 step by step
99715205 × 18034809 = 18034809 × (99715205)
+ 18034809 × 5 that equals 90174045
+ 18034809 × 00 that is equal 0
+ 18034809 × 200 producing 3606961800
+ 18034809 × 5000 that is equal 90174045000
+ 18034809 × 10000 what gives us 180348090000
+ 18034809 × 700000 that is equal 12624366300000
+ 18034809 × 9000000 resulting in 162313281000000
+ 18034809 × 90000000 giving us 1623132810000000

= 1798344676570845
