Bonjour
777 * 777 = 603, 729
sept cent soixante-dix-sept * sept cent soixante-dix-sept =
six cent trois mille sept cent vingt-neuf
Not sure that's what you wanted
777,777 = sept cent soixante-dix-sept mille sept cent soixante-dix-sept
....
Hope this helps ☺☺☺
