We divide 72170 by 70
Our goal is to divide 72170 by 70.

On to step 1:
The number 70 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 70

On to step 2:
When dividing 72 by 70, we get 1 with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 70 from 72 leaves us with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 70

Step 3:
70 goes into 21 0 times with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtract 0 from 21 to get 21.
Bring next digit (7) of the dividend behind the 21 and repeat the process: 217 / 70

Moving on to step 4:
217 divided by 70 is 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 103.0
If we take 210 away from 217, we end up with 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 70

On to step 5:
70 can be fit into 70 1 times, resulting in a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1031.0
Subtract 70 from 70 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 6:
70 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1031.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
0 divided by 70 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1031.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 1031.0 with a remaining 0.0.