Help with chevron blanket

[Redpurple]

Can someone help me break down the first row in this pattern? I'm new to knitting. I'm confused about the ssk repeating from * to last 13 stiches and the 86 stiches. Thanks so much for your help!

K1, ssk, *k10, k2tog, ssk repeat from * to last 13 stiches, k10, k2tog, k1 (86 stiches)

[salmonmac]

Hi and welcome!
The repeat is of the directions in between the asterisks. So k1 ssk and then repeat the k10, k2tog, ssk until you get to the last 13sts, then follow the k10, k2tog, k1 directions. You'll have 86 sts total at the end of the row.