No problem, we've got 2143 and 7970 to multiply
2143 × 7970 = 7970 × (2143)
+ 7970 × 3 that is equal 23910
+ 7970 × 40 that equals 318800
+ 7970 × 100 that equals 797000
+ 7970 × 2000 giving us 15940000

= 17079710
