Could someone explain how to get the binary of the polynomial also how to get the result on top of the divide sign "11001000100"?

CRC-3 Example: message=5AE, x3 + x2 + 1 polynomial 1 1 0 1 0 f padded message 1 1 0 0 1 0 0 0 1 0 0 1 o 1 1 0 1 0 1 1 1 0 0 0 0 1 1 0 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 0 1 line up leftmost '1' values, then apply XOR to subtract 1 OO 1 1 0 1 100 + remainder Since we are doing CRC-3 and final result remainder is only 3 bits, we must pad it with a leading zero to get a 4-bit value. Our final CRC code for this message is 0100 which is 416, so the message with CRC appended is: 5AE416 16