No problem, we've got 1661 and 8343 to multiply
1661 × 8343 = 8343 × (1661)
+ 8343 × 1 which equals 8343
+ 8343 × 60 giving us 500580
+ 8343 × 600 resulting in 5005800
+ 8343 × 1000 which equals 8343000

= 13857723
