No problem, we've got 9844 and 8605 to multiply
9844 × 8605 = 8605 × (9844)
+ 8605 × 4 that equals 34420
+ 8605 × 40 that equals 344200
+ 8605 × 800 resulting in 6884000
+ 8605 × 9000 what gives us 77445000

= 84707620
