Cabling without a cable needle

The piece before you start: the pattern tells you to slip first three stitches to a cable needle, hold at front of work, knit 3, then knit 3 from cable needle. 1. What I do: Insert ther right needle into the second three stitches on the left needle, from the back.
 
2. Slip the first three stitches off the left needle.

 
3. Slip the three loose stitches back on the left needle -- you now have the firs three stitches on the left needle and the second three stitches on the right needle.
4. Insert the point of the left needle through the three stitches on the right needle and transfer those stitches to the left needle. 5. You have now formed the cable twist before you have knitted the stitches.

 
6. Knit across the cable stitches. 7. Ta-da! Your cable is complete!