Staking works based on a Proof or Stake consensus model, so you are paid to process transactions and secure the network based on your proportionate share in the value of the 1337 currency. In theory if you own 1% of a PoS currency you would process 1% of the transactions, other factors being equal, solid internet connection, you are running the wallet 24/7, etc.

The frequency of credits to your account depends on how many 1337 you own, if you own more than 3M shares then you should be paid daily stakes since your ownership allocation should earn about 600,000 1337 shares a year. There is some randomness to the payments with staking especially as network strength rises and falls. You may get 0 payments one day and two payments the next. If several days go by and you are not getting any stakes it could be your number of shares is too small and your relative network weight needs to be increased.

The blockchain network will select your wallet in a semi deterministic fashion to process a transaction. The staking number which you mentioned from the wallet will change to a non zero number and you should earn a stake shortly.