Transfer 21.687 from decimal in binary number system

Translate the number 21.687₁₀ в binary like this:

the Integer part of the number is divided by the base of the new number system:

21	2
-20	10	2
1	-10	5	2
	0	-4	2	2
		1	-2	1
			0

the Fractional part of the number is multiplied by the base of the new number system:

	0.	687*2
	1	.374*2
	0	.748*2
	1	.496*2
	0	.992*2
	1	.984*2
	1	.968*2
	1	.936*2
	1	.872*2
	1	.744*2
	1	.488*2

the result of the conversion was: