No problem, we've got 7984 and 1559 to multiply
7984 × 1559 = 1559 × (7984)
+ 1559 × 4 that is equal 6236
+ 1559 × 80 yielding 124720
+ 1559 × 900 that is equal 1403100
+ 1559 × 7000 which equals 10913000

= 12447056
