No problem, we've got 6834 and 7990 to multiply
6834 × 7990 = 7990 × (6834)
+ 7990 × 4 resulting in 31960
+ 7990 × 30 resulting in 239700
+ 7990 × 800 what gives us 6392000
+ 7990 × 6000 what gives us 47940000

= 54603660
