Which of the following options below describes the correct algorithm for converting an UNsigned decimal number to binary?

$1.$ Divide the number by $2$

$2.$ Calculate and store the quotient

$3.$ Calculate and store the remainder

$4.$ Set number $=$ quotient

$5.$ If the $\_$ is not equal to $0,$ go back to step $1,$ else go to step $6$

$6.$ The binary number is stored in the $\_$