Alright, let's work through 78364619 times 22055609 step by step
78364619 × 22055609 = 22055609 × (78364619)
+ 22055609 × 9 what gives us 198500481
+ 22055609 × 10 yielding 220556090
+ 22055609 × 600 that equals 13233365400
+ 22055609 × 4000 what gives us 88222436000
+ 22055609 × 60000 that equals 1323336540000
+ 22055609 × 300000 which equals 6616682700000
+ 22055609 × 8000000 that results in 176444872000000
+ 22055609 × 70000000 that results in 1543892630000000

= 1728379396097971
