No problem, we've got 2142 and 8570 to multiply
2142 × 8570 = 8570 × (2142)
+ 8570 × 2 producing 17140
+ 8570 × 40 resulting in 342800
+ 8570 × 100 resulting in 857000
+ 8570 × 2000 that is equal 17140000

= 18356940
