Let's divide 18213979 by 172
We want to figure out the number of times 18213979 can be divided by 172.

Step 1:
When dividing 1 by 172, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 172

Going ahead to step 2:
If we divide 18 by 172, we get 0 and a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Take the next digit (2) from the dividend and append it to 18, then repeat: 182 / 172

Going ahead to step 3:
172 can be fit into 182 1 times, resulting in a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 10 after subtracting 172 from 182.
Append the next digit (1) from the dividend to 10 and continue with: 101 / 172

Advancing to step 4:
If we divide 101 by 172, we get 0 and a remainder of 101.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtracting 0 from 101 leaves us with 101.
Take the next digit (3) from the dividend and append it to 101, then repeat: 1013 / 172

Going ahead to step 5:
172 goes into 1013 5 times with a remainder of 153.
The number 5 becomes the next digit in our result. 
Result so far: 105.0
Subtract 860 from 1013 to get 153.
Bring next digit (9) of the dividend behind the 153 and repeat the process: 1539 / 172

Going ahead to step 6:
The number 172 fits into 1539 8 times, leaving a remainder of 163.
Put 8 as the next digit of the answer. 
Result so far: 1058.0
Deduct 1376 from 1539 and we're left with 163.
Grab the next digit (7) from the dividend, add it to 163, then carry on: 1637 / 172

On to step 7:
If we divide 1637 by 172, we get 9 and a remainder of 89.
Record the quotient 9 as the next digit in the result. 
Result so far: 10589.0
If we subtract 1548 from 1637, we get 89.
Take the next digit (9) from the dividend and append it to 89, then repeat: 899 / 172

Step 8:
172 can be fit into 899 5 times, resulting in a remainder of 39.
The number 5 becomes the next digit in our result. 
Result so far: 105895.0
Subtracting 860 from 899 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 9:
390 divided by 172 is 2 with a remainder of 46.
Write down 2 as next digit of the result. 
Result so far: 105895.2
If we take 344 away from 390, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 10:
When dividing 460 by 172, we get 2 with a remainder of 116.
The next digit of our result is 2. 
Result so far: 105895.22
Subtract 344 from 460 to get 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Our division results in 105895.22 with a remaining 0.116.