No problem, we've got 8405 and 3543 to multiply
8405 × 3543 = 3543 × (8405)
+ 3543 × 5 that is equal 17715
+ 3543 × 00 giving us 0
+ 3543 × 400 that results in 1417200
+ 3543 × 8000 that equals 28344000

= 29778915
