Convert octet value to gigaoctet

Hello community Grafana,

I’m bugging a conversion problem from grafana.
I have a value in octet given by Zabbix, for example “3518260248”, how can convert this value at gigaoctet (Go) to integrate it in a graph ?

I tried the transfor, binary, “3518260248”/1+9 this does not work. :frowning:

Thank you for your help

change the unit of the field to bytes