Alright, let's work through 76686946 times 19665920 step by step
76686946 × 19665920 = 19665920 × (76686946)
+ 19665920 × 6 producing 117995520
+ 19665920 × 40 giving us 786636800
+ 19665920 × 900 that results in 17699328000
+ 19665920 × 6000 yielding 117995520000
+ 19665920 × 80000 producing 1573273600000
+ 19665920 × 600000 yielding 11799552000000
+ 19665920 × 6000000 which equals 117995520000000
+ 19665920 × 70000000 that is equal 1376614400000000

= 1508119345080320
