No problem, we've got 1340 and 5381 to multiply
1340 × 5381 = 5381 × (1340)
+ 5381 × 0 which equals 0
+ 5381 × 40 that is equal 215240
+ 5381 × 300 yielding 1614300
+ 5381 × 1000 what gives us 5381000

= 7210540
