No problem, we've got 1591 and 5478 to multiply
1591 × 5478 = 5478 × (1591)
+ 5478 × 1 giving us 5478
+ 5478 × 90 giving us 493020
+ 5478 × 500 that equals 2739000
+ 5478 × 1000 which equals 5478000

= 8715498
