No problem, we've got 9947 and 1691 to multiply
9947 × 1691 = 1691 × (9947)
+ 1691 × 7 that is equal 11837
+ 1691 × 40 that is equal 67640
+ 1691 × 900 resulting in 1521900
+ 1691 × 9000 giving us 15219000

= 16820377
