We look at the division of 20860718 by 172 
We want to figure out the number of times 20860718 can be divided by 172.

Moving on to step 1:
When dividing 2 by 172, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 172

Let's proceed to step 2:
20 divided by 172 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Take the next digit (8) from the dividend and append it to 20, then repeat: 208 / 172

Step 3:
When dividing 208 by 172, we get 1 with a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 172 from 208 leaves us with 36.
Include the next digit (6) from the dividend after 36, then repeat: 366 / 172

Advancing to step 4:
172 goes into 366 2 times with a remainder of 22.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we take 344 away from 366, we end up with 22.
Include the next digit (0) from the dividend after 22, then repeat: 220 / 172

Advancing to step 5:
If we divide 220 by 172, we get 1 and a remainder of 48.
Write down 1 as next digit of the result. 
Result so far: 121.0
The remainder is 48 after subtracting 172 from 220.
Append the next digit (7) from the dividend to 48 and continue with: 487 / 172

Going ahead to step 6:
The number 172 fits into 487 2 times, leaving a remainder of 143.
Use 2 as the next digit of our solution. 
Result so far: 1212.0
The remainder is 143 after subtracting 344 from 487.
Append the next digit (1) from the dividend to 143 and continue with: 1431 / 172

On to step 7:
1431 divided by 172 is 8 with a remainder of 55.
Put 8 as the next digit of the answer. 
Result so far: 12128.0
Subtract 1376 from 1431 to get 55.
Append the next digit (8) from the dividend to 55 and continue with: 558 / 172

Advancing to step 8:
172 can be fit into 558 3 times, resulting in a remainder of 42.
Put 3 as the next digit of the answer. 
Result so far: 121283.0
Subtracting 516 from 558 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 9:
172 can be fit into 420 2 times, resulting in a remainder of 76.
Put 2 as the next digit of the answer. 
Result so far: 121283.2
The remainder is 76 after subtracting 344 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 10:
760 divided by 172 is 4 with a remainder of 72.
Record the quotient 4 as the next digit in the result. 
Result so far: 121283.24
Subtract 688 from 760 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 11:
The number 172 fits into 720 4 times, leaving a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 121283.244
Subtracting 688 from 720 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 121283.244 and a remainder of 0.0032.