No problem, we've got 2570 and 8070 to multiply
2570 × 8070 = 8070 × (2570)
+ 8070 × 0 that is equal 0
+ 8070 × 70 yielding 564900
+ 8070 × 500 resulting in 4035000
+ 8070 × 2000 which equals 16140000

= 20739900
