No problem, we've got 8427 and 992 to multiply
8427 × 992 = 992 × (8427)
+ 992 × 7 resulting in 6944
+ 992 × 20 that is equal 19840
+ 992 × 400 that results in 396800
+ 992 × 8000 which equals 7936000

= 8359584
