You can state clearly from the very beginning that you are interested in establishing friendship first.
The majority of the women seeking partners do expect more, but if they decide to keep contact with you, it will mean that they accept your position.
Usually the reason for that is family members or friends who are staying there.There is also a difference between western men living in the west and Russian men living in Russia (and I am certainly not a big fond of the patriarchal, chauvinistic Russian family model).You live in a certain society and you become a part of this society, whether you want it or not.They do it because they want to meet a suitable partner for marriage. They don't have a different type of character, and they also love shopping and chatting.They are human beings and they are definitely not perfect. Another important difference is that Russian women (and Russians in general) have very low self-esteem. While Western women think that they are goddesses and able to cope with anything on their own, a Russian woman (living in Russia and married to a Russian man) will rarely leave a bad (really BAD) husband because of the fear that she won't find another one.