may be js can help you with this small extension , credit to @Juan_Antonio beause of this extension
use this code
var str = "v[ ED 6732v+04 aUN%8S.y;ewYGMkqGj6 9kHUKvVP@Tqw0e60Xbadi) nU(uqPqr cK1 DD6AiwbzDXHyf 61778352715 a*tN{% X{5-Y?.#X.1jc0wFVZ{dn$Y_rY [}g%k ;Y-e(Q8[Z @$91A+CQ/_wUCr.y #V+c&p%:u[Pgn ,D&A{wNKmd{bt57t";
var numbers = str.match(/\b\d{7,}\b/g);
numbers ? numbers.join(", ") : "No match";
or you can achieve it withoput extension with this blocks..split text one space ( we found there is a space so used )
if you are sure there will be a only one item will be there then you can use the below blocks, else if there is a possibility of multiple numbers mean you canuse the above block
