If you use the same seed phrase for both, you would not need to “send“ from one to the other. They would have the same balance, anyway, just be two interfaces to exactly the same wallet.
There are surely two accounts/wallets involved. You sent everything from the wallet with the stake key stake1uy3cxm5dsak8t833xe82h9g4tl0hqr7svcam7ngq7sycwwsmuph8t to the wallet with the stake key stake1u85hz635vwjnx2xexwyr8ge6sz05tsg2lr3lmrm7uwnq8yq9pn2y4.
You need to find out which one you are looking at in Yoroi. You can see the stake key at “Receive” – “Reward”. If you are really looking at the second wallet, it should show the 827.35 ADA balance. If it does not, try “Resync Wallet” at “Settings” – “Wallet”.
If you are looking at a different wallet, you really need to find the seed phrase for the second wallet. There are definitely two different wallets involved, so you must have two different seed phrases. Seed phrases are wallets. It does not matter, which wallet app – Daedalus, Yoroi, adalite, … – you use to access them, they are all interfaces to the same wallet given by the seed phrase.