Let's divide 12172151 by 439
Our goal is to divide 12172151 by 439.

On to step 1:
1 divided by 439 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 439

Let's proceed to step 2:
12 divided by 439 is 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 439

Going ahead to step 3:
439 goes into 121 0 times with a remainder of 121.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 121, we get 121.
Grab the next digit (7) from the dividend, add it to 121, then carry on: 1217 / 439

Advancing to step 4:
When dividing 1217 by 439, we get 2 with a remainder of 339.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 878 from 1217 and we're left with 339.
Bring next digit (2) of the dividend behind the 339 and repeat the process: 3392 / 439

Let's proceed to step 5:
When dividing 3392 by 439, we get 7 with a remainder of 319.
Write down 7 as next digit of the result. 
Result so far: 27.0
Subtract 3073 from 3392 to get 319.
Bring next digit (1) of the dividend behind the 319 and repeat the process: 3191 / 439

Moving on to step 6:
439 can be fit into 3191 7 times, resulting in a remainder of 118.
Record the quotient 7 as the next digit in the result. 
Result so far: 277.0
Subtract 3073 from 3191 to get 118.
Grab the next digit (5) from the dividend, add it to 118, then carry on: 1185 / 439

Step 7:
The number 439 fits into 1185 2 times, leaving a remainder of 307.
Record the quotient 2 as the next digit in the result. 
Result so far: 2772.0
Subtract 878 from 1185 to get 307.
Grab the next digit (1) from the dividend, add it to 307, then carry on: 3071 / 439

Advancing to step 8:
439 can be fit into 3071 6 times, resulting in a remainder of 437.
The next digit of our result is 6. 
Result so far: 27726.0
Deduct 2634 from 3071 and we're left with 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Advancing to step 9:
4370 divided by 439 is 9 with a remainder of 419.
Write down 9 as next digit of the result. 
Result so far: 27726.9
If we subtract 3951 from 4370, we get 419.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

On to step 10:
439 can be fit into 4190 9 times, resulting in a remainder of 239.
Record the quotient 9 as the next digit in the result. 
Result so far: 27726.99
Subtracting 3951 from 4190 leaves us with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Our division results in 27726.99 with a remaining 0.239.