No problem, we've got 1981 and 8620 to multiply
1981 × 8620 = 8620 × (1981)
+ 8620 × 1 that is equal 8620
+ 8620 × 80 producing 689600
+ 8620 × 900 resulting in 7758000
+ 8620 × 1000 producing 8620000

= 17076220
