please solve question by hand not matlab and write steps clearly

*Question 4: True Error (15\%) Suppose you are working with a very old computer system, in which a decimal number is represented as an 8-bit binary space (with digits organized shown in the following figure), given a decimal number (0.628316)10 1) Convert it into a binary number (a1a2a3a4a5an)2. Please write out your steps calculating to a. 6 . 2) Round-off this number to this 8 -bit binary space. 3) Compute the absolute true error Et, and absolute relative true error Et. (Tip: convert the round-offed number to decimal again as the approximated value, and perform the computation)