No problem, we've got 2473 and 6273 to multiply
2473 × 6273 = 6273 × (2473)
+ 6273 × 3 that is equal 18819
+ 6273 × 70 that results in 439110
+ 6273 × 400 giving us 2509200
+ 6273 × 2000 which equals 12546000

= 15513129
