Go to great lengths

The most surprising thing was to discover that each job had its little tricks, peculiarities that had been learned in the experience of years, and one of the really pleasing features was the unlimited patience and kindliness of the chargehands and fitters, who would go to great lengths to teach the budding engineer all they themselves knew.

[…] They said good-bye on the eleventh, and the Portuguese noblemen saw him off, going to great lengths to show him respect."

Most scholars writing on the mafia were going to great lengths to demonstrate that it did not exist—and the mobsters wanted to keep their brotherhood secret.

As a father, I would go to great lengths to protect my children.