No problem, we've got 2139 and 2563 to multiply
2139 × 2563 = 2563 × (2139)
+ 2563 × 9 that is equal 23067
+ 2563 × 30 yielding 76890
+ 2563 × 100 yielding 256300
+ 2563 × 2000 resulting in 5126000

= 5482257
