Alright, let's work through 1072 times 6255 step by step
1072 × 6255 = 6255 × (1072)
+ 6255 × 2 that equals 12510
+ 6255 × 70 that results in 437850
+ 6255 × 000 what gives us 0
+ 6255 × 1000 that is equal 6255000

= 6705360
