No problem, we've got 4209 and 8390 to multiply
4209 × 8390 = 8390 × (4209)
+ 8390 × 9 resulting in 75510
+ 8390 × 00 that is equal 0
+ 8390 × 200 that equals 1678000
+ 8390 × 4000 resulting in 33560000

= 35313510
