Alright, let's work through 6021454 times 67009458 step by step
6021454 × 67009458 = 67009458 × (6021454)
+ 67009458 × 4 that is equal 268037832
+ 67009458 × 50 yielding 3350472900
+ 67009458 × 400 yielding 26803783200
+ 67009458 × 1000 giving us 67009458000
+ 67009458 × 20000 that equals 1340189160000
+ 67009458 × 000000 that results in 0
+ 67009458 × 6000000 which equals 402056748000000

= 403494368911932
