Alright, let's work through 67835080 times 5091978 step by step
67835080 × 5091978 = 5091978 × (67835080)
+ 5091978 × 0 which equals 0
+ 5091978 × 80 producing 407358240
+ 5091978 × 000 giving us 0
+ 5091978 × 5000 that is equal 25459890000
+ 5091978 × 30000 yielding 152759340000
+ 5091978 × 800000 that equals 4073582400000
+ 5091978 × 7000000 producing 35643846000000
+ 5091978 × 60000000 producing 305518680000000

= 345414734988240
