No problem, we've got 3681 and 899 to multiply
3681 × 899 = 899 × (3681)
+ 899 × 1 what gives us 899
+ 899 × 80 that is equal 71920
+ 899 × 600 that is equal 539400
+ 899 × 3000 resulting in 2697000

= 3309219
