I have a string - 246182373246849376246894309.

I need to split it in a group of 9 digits i,.e it should start with 246

Expected output - 246182373 246849376 246894309.

`"246182373246849376246894309".Insert(9, " ").Insert(19," ")`

and so onâ€¦

I need to split it in a group of 9 digits i,.e it should start with 246

Expected output - 246182373 246849376 246894309.

`"246182373246849376246894309".Insert(9, " ").Insert(19," ")`

and so onâ€¦