No problem, we've got 1524 and 5135 to multiply
1524 × 5135 = 5135 × (1524)
+ 5135 × 4 producing 20540
+ 5135 × 20 giving us 102700
+ 5135 × 500 what gives us 2567500
+ 5135 × 1000 resulting in 5135000

= 7825740
