Alright, let's work through 6090 times 9252 step by step
6090 × 9252 = 9252 × (6090)
+ 9252 × 0 resulting in 0
+ 9252 × 90 resulting in 832680
+ 9252 × 000 what gives us 0
+ 9252 × 6000 that equals 55512000

= 56344680
