Alright, let's work through 1585 times 8070 step by step
1585 × 8070 = 8070 × (1585)
+ 8070 × 5 giving us 40350
+ 8070 × 80 yielding 645600
+ 8070 × 500 what gives us 4035000
+ 8070 × 1000 that is equal 8070000

= 12790950
