Alright, let's work through 23700797 times 63794705 step by step
23700797 × 63794705 = 63794705 × (23700797)
+ 63794705 × 7 that equals 446562935
+ 63794705 × 90 resulting in 5741523450
+ 63794705 × 700 that results in 44656293500
+ 63794705 × 0000 that equals 0
+ 63794705 × 00000 yielding 0
+ 63794705 × 700000 producing 44656293500000
+ 63794705 × 3000000 yielding 191384115000000
+ 63794705 × 20000000 giving us 1275894100000000

= 1511985352879885
