172641 ÷ 55 
We want to divide 172641 by 55.

On to step 1:
When dividing 1 by 55, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 55

On to step 2:
55 can be fit into 17 0 times, resulting in a remainder of 17.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Grab the next digit (2) from the dividend, add it to 17, then carry on: 172 / 55

Let's proceed to step 3:
55 goes into 172 3 times with a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 165 from 172 and we're left with 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 55

Step 4:
76 divided by 55 is 1 with a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 31.0
Subtract 55 from 76 to get 21.
Bring next digit (4) of the dividend behind the 21 and repeat the process: 214 / 55

Advancing to step 5:
If we divide 214 by 55, we get 3 and a remainder of 49.
Use 3 as the next digit of our solution. 
Result so far: 313.0
Subtract 165 from 214 to get 49.
Include the next digit (1) from the dividend after 49, then repeat: 491 / 55

Advancing to step 6:
55 can be fit into 491 8 times, resulting in a remainder of 51.
The number 8 becomes the next digit in our result. 
Result so far: 3138.0
Deduct 440 from 491 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 7:
510 divided by 55 is 9 with a remainder of 15.
Put 9 as the next digit of the answer. 
Result so far: 3138.9
If we take 495 away from 510, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 8:
55 can be fit into 150 2 times, resulting in a remainder of 40.
Use 2 as the next digit of our solution. 
Result so far: 3138.92
If we take 110 away from 150, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
When dividing 400 by 55, we get 7 with a remainder of 15.
Put 7 as the next digit of the answer. 
Result so far: 3138.927
Subtracting 385 from 400 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 10:
150 divided by 55 is 2 with a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 3138.9272
If we subtract 110 from 150, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 11:
400 divided by 55 is 7 with a remainder of 15.
The next digit of our result is 7. 
Result so far: 3138.92727
Deduct 385 from 400 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 12:
55 goes into 150 2 times with a remainder of 40.
The next digit of our result is 2. 
Result so far: 3138.927272
If we take 110 away from 150, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 13:
The number 55 fits into 400 7 times, leaving a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 3138.9272727
The remainder is 15 after subtracting 385 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 14:
The number 55 fits into 150 2 times, leaving a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 3138.92727272
The remainder is 40 after subtracting 110 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 3138.92727272 with a remaining 4e-08.