No problem, we've got 2509 and 5140 to multiply
2509 × 5140 = 5140 × (2509)
+ 5140 × 9 which equals 46260
+ 5140 × 00 producing 0
+ 5140 × 500 that is equal 2570000
+ 5140 × 2000 that results in 10280000

= 12896260
