No problem, we've got 9921 and 9947 to multiply
9921 × 9947 = 9947 × (9921)
+ 9947 × 1 giving us 9947
+ 9947 × 20 what gives us 198940
+ 9947 × 900 producing 8952300
+ 9947 × 9000 what gives us 89523000

= 98684187
