Go to https://www.binance.com/en/my/wallet/account/main/deposit/fiat/BRL (Wallet-> Spot-> Deposit-> Fiat ->BRL) and select bank transfer to deposit.

Input the amount of BRL you wish to deposit and fill in ‘Additional Verification’ details.

After confirming deposit details check your wallet balance. Deposits are identified automatically, so it must be cleared in a few minutes after bank clearing.