No problem, we've got 4085 and 8439 to multiply
4085 × 8439 = 8439 × (4085)
+ 8439 × 5 giving us 42195
+ 8439 × 80 that equals 675120
+ 8439 × 000 that is equal 0
+ 8439 × 4000 which equals 33756000

= 34473315
