If you store your Dogecoin in Binance Exchange, then it is pretty simple to migrate your Dogecoin in Binance Exchange to Binance Smart Chain. The process is almost the same as your exchange withdrawal ritual, except changing the network to BEP-20 Network
1. Go to Dogecoin Withdrawal Interface on Binance Exchange (APP)
2. Click Network and Choose BEP20 (BSC)
3. If you input a correct BSC address, the Network will be automatically matched to BEP-20 (BSC)
After withdrawal is confirmed, wait for Dogecoin to arrive at your BSC address.