No problem, we've got 4859 and 1691 to multiply
4859 × 1691 = 1691 × (4859)
+ 1691 × 9 what gives us 15219
+ 1691 × 50 that equals 84550
+ 1691 × 800 that is equal 1352800
+ 1691 × 4000 what gives us 6764000

= 8216569
