No problem, we've got 9891 and 9427 to multiply
9891 × 9427 = 9427 × (9891)
+ 9427 × 1 what gives us 9427
+ 9427 × 90 what gives us 848430
+ 9427 × 800 giving us 7541600
+ 9427 × 9000 producing 84843000

= 93242457
