I am working with qweb reports in odoo 10 . Here is what i did

<odoo>
<template id="report_customer">
    <t t-call="report.html_container">
        <t t-set="data_report_margin_top" t-value="50"/>
        <t t-foreach="range(5)" t-as="1">
            <t t-foreach="docs" t-as="o">
            <t t-call="report.internal_layout">
                <div class="page example-css-class">
                    <h2>Report title</h2>
                    <p>This object's name is
                        <span t-field="o.full_name"/>
                    </p>
                    <ul class="list-inline">
                         <li>Page:</li>
                         <li><span class="page"/></li>
                         <li>/</li>
                         <li><span class="topage"/></li>
                    </ul>
                </div>
            </t>
        </t>
        </t>
    </t>
</template>
</odoo>

and i also tried this

<odoo>
<template id="report_customer">
    <t t-call="report.html_container">
        <t t-set="data_report_margin_top" t-value="50"/>
        <t t-foreach="range(5)" t-as="1">
            <t t-foreach="docs" t-as="o">
            <t t-call="report.internal_layout">
                <div class="page example-css-class">
                    <h2>Report title</h2>
                    <p>This object's name is
                        <span t-field="o.full_name"/>
                    </p>
                    <div class="footer" style="text-align: center !important;">
                      Page  <span class="page"/> of <span class="topage"/>
                    </div>
                </div>
            </t>
        </t>
        </t>
    </t>
</template>
</odoo>

but in both cases i am not able to see page numbers. I also tried adding custom header and footer in separate templates but that also doesn't work.