Alright, let's work through 3429 times 6104 step by step
3429 × 6104 = 6104 × (3429)
+ 6104 × 9 producing 54936
+ 6104 × 20 what gives us 122080
+ 6104 × 400 that equals 2441600
+ 6104 × 3000 which equals 18312000

= 20930616
