Alright, let's work through 6057 times 6900 step by step
6057 × 6900 = 6900 × (6057)
+ 6900 × 7 that equals 48300
+ 6900 × 50 that results in 345000
+ 6900 × 000 giving us 0
+ 6900 × 6000 that results in 41400000

= 41793300
