Answer:
213
Step-by-step explanation:
1. Set up an equation (as you have done there)
2. divide the first digit, so in this case you want to divide 34 / 7 which doesn't work so your gonna add another number 72 and how many times can 34 go into 72 that will be twice so 34 x 2 is 68, and you put the 2 at the top where the line is over 2
3. and then you subtract 72 and 68 and then you get 4.
4. after that you start the process again but doing it by just adding another number so in this case you would 724 at the next step. you stop when you have run out of numbers to add
hope i helped
