Others have mentioned using spaces with an en-dash or hyphen instead of an em-dash. Having used a typewriter -back in the day- I learned to produce text like t

Others have mentioned using spaces with an en-dash or hyphen instead of an em-dash. Having used a typewriter -back in the day- I learned to produce text like this. How I learned the Unreadable: “Sometimes writing for money -rather than for art or pleasure- is really quite enjoyable.” To the teacher I learned from this was a standard way of punctuating on a typewriter.