No problem, we've got 1615 and 5124 to multiply
1615 × 5124 = 5124 × (1615)
+ 5124 × 5 giving us 25620
+ 5124 × 10 giving us 51240
+ 5124 × 600 resulting in 3074400
+ 5124 × 1000 giving us 5124000

= 8275260
