Extract some columns data from one table and insert into multiple tables
Assuming that you are preserving the id assocaited with each name and lastname, run this:

INSERT INTO tbl_2 (id,name) SELECT id,name FROM tbl_1;
INSERT INTO tbl_3 (id,lastname) SELECT id,lastname FROM tbl_1;


If tabless tbl_2 and tbl_3 already have data and you wish to overwrite it, run this:

REPLACE INTO tbl_2 (id,name) SELECT id,name FROM tbl_1;
REPLACE INTO tbl_3 (id,lastname) SELECT id,lastname FROM tbl_1;


If you are not preserving the ID, then run this:

INSERT INTO tbl_2 (name) SELECT name FROM tbl_1;
INSERT INTO tbl_3 (lastname) SELECT lastname FROM tbl_1;