No problem, we've got 5598 and 1344 to multiply
5598 × 1344 = 1344 × (5598)
+ 1344 × 8 what gives us 10752
+ 1344 × 90 that equals 120960
+ 1344 × 500 that results in 672000
+ 1344 × 5000 which equals 6720000

= 7523712
