We divide 172200 by 7
We want to divide 172200 by 7.

On to step 1:
7 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 7

Going ahead to step 2:
7 goes into 17 2 times with a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 3 after subtracting 14 from 17.
Grab the next digit (2) from the dividend, add it to 3, then carry on: 32 / 7

Advancing to step 3:
If we divide 32 by 7, we get 4 and a remainder of 4.
The next digit of our result is 4. 
Result so far: 24.0
The remainder is 4 after subtracting 28 from 32.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 7

Let's proceed to step 4:
7 can be fit into 42 6 times, resulting in a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 246.0
If we subtract 42 from 42, we get 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 7

Going ahead to step 5:
7 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: 2460.0
If we take 0 away from 0, we end up with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 7

On to step 6:
If we divide 0 by 7, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 24600.0
If we subtract 0 from 0, we 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.

Going ahead to step 7:
When dividing 0 by 7, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 24600.0
If we subtract 0 from 0, we 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.

Going ahead to step 8:
If we divide 0 by 7, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 24600.0
Deduct 0 from 0 and we're left 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.

The final outcome is 24600.0, with a leftover of 0.0.