There are several ways to approach this. One is to enter the data into a spreasheet program and let it draw the histogram for you.
Another way is to start with a "stem and leaf" plot and see if that gives you any ideas about how you want to do it.
0|6
1|3
2|4 7 8
3|2 2 4 8
4|2 2 3 8 9 9 9
5|1 2 2 3 3 3 4 5 6 7 7
6|0 1 1 2 6 6 6 8
7|0 2 8
8|3
9|7
This suggests you might get the sort of presentation you want using 10 bars, each representing the count in the age groups 0-9, 10-19, 20-29, and so on up to 90-99.