Alright, let's work through 9042 times 390 step by step
9042 × 390 = 390 × (9042)
+ 390 × 2 producing 780
+ 390 × 40 what gives us 15600
+ 390 × 000 resulting in 0
+ 390 × 9000 giving us 3510000

= 3526380
