Alright, let's work through 78159720 times 27049309 step by step
78159720 × 27049309 = 27049309 × (78159720)
+ 27049309 × 0 that results in 0
+ 27049309 × 20 producing 540986180
+ 27049309 × 700 producing 18934516300
+ 27049309 × 9000 what gives us 243443781000
+ 27049309 × 50000 that is equal 1352465450000
+ 27049309 × 100000 that equals 2704930900000
+ 27049309 × 8000000 giving us 216394472000000
+ 27049309 × 70000000 that results in 1893451630000000

= 2114166417633480
