The binary equivalent of 354 is : 0000 0001 0110 0010

$$(354)_{10}=(0000~0001~0110~0010)_2$$

To convert the decimal number 354 to binary, we can repeatedly divide by 2 and keep track of the remainders. Here’s the process:

1. 354 ÷ 2 = 177, remainder 0
2. 177 ÷ 2 = 88, remainder 1
3. 88 ÷ 2 = 44, remainder 0
4. 44 ÷ 2 = 22, remainder 0
5. 22 ÷ 2 = 11, remainder 0
6. 11 ÷ 2 = 5, remainder 1
7. 5 ÷ 2 = 2, remainder 1
8. 2 ÷ 2 = 1, remainder 0
9. 1 ÷ 2 = 0, remainder 1

Now, reading the remainders from the bottom up, we get:

$$(354)_{10} = (0000~0001~0110~0010)_2$$

So, the binary equivalent of 354 is : 0000 0001 0110 0010.