31939969 ÷ 172 
Let's see how many times 172 fits into 31939969.

Step 1:
The number 172 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 172

On to step 2:
If we divide 31 by 172, we get 0 and a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Append the next digit (9) from the dividend to 31 and continue with: 319 / 172

Moving on to step 3:
172 can be fit into 319 1 times, resulting in a remainder of 147.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 172 from 319 to get 147.
Append the next digit (3) from the dividend to 147 and continue with: 1473 / 172

On to step 4:
If we divide 1473 by 172, we get 8 and a remainder of 97.
Use 8 as the next digit of our solution. 
Result so far: 18.0
If we take 1376 away from 1473, we end up with 97.
Fetch the next digit (9) from the dividend, attach it to 97 and continue: 979 / 172

On to step 5:
172 can be fit into 979 5 times, resulting in a remainder of 119.
The number 5 becomes the next digit in our result. 
Result so far: 185.0
If we take 860 away from 979, we end up with 119.
Fetch the next digit (9) from the dividend, attach it to 119 and continue: 1199 / 172

Moving on to step 6:
1199 divided by 172 is 6 with a remainder of 167.
Put 6 as the next digit of the answer. 
Result so far: 1856.0
The remainder is 167 after subtracting 1032 from 1199.
Grab the next digit (6) from the dividend, add it to 167, then carry on: 1676 / 172

On to step 7:
The number 172 fits into 1676 9 times, leaving a remainder of 128.
Write down 9 as next digit of the result. 
Result so far: 18569.0
Deduct 1548 from 1676 and we're left with 128.
Include the next digit (9) from the dividend after 128, then repeat: 1289 / 172

Let's proceed to step 8:
1289 divided by 172 is 7 with a remainder of 85.
Use 7 as the next digit of our solution. 
Result so far: 185697.0
If we subtract 1204 from 1289, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 9:
172 goes into 850 4 times with a remainder of 162.
Write down 4 as next digit of the result. 
Result so far: 185697.4
If we take 688 away from 850, we end up with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Let's proceed to step 10:
172 goes into 1620 9 times with a remainder of 72.
Write down 9 as next digit of the result. 
Result so far: 185697.49
Subtract 1548 from 1620 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.

Going ahead to step 11:
172 goes into 720 4 times with a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 185697.494
Deduct 688 from 720 and we're left 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.

Advancing to step 12:
320 divided by 172 is 1 with a remainder of 148.
Put 1 as the next digit of the answer. 
Result so far: 185697.4941
If we subtract 172 from 320, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Advancing to step 13:
1480 divided by 172 is 8 with a remainder of 104.
Write down 8 as next digit of the result. 
Result so far: 185697.49418
The remainder is 104 after subtracting 1376 from 1480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Moving on to step 14:
172 goes into 1040 6 times with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 185697.494186
The remainder is 8 after subtracting 1032 from 1040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 15:
80 divided by 172 is 0 with a remainder of 80.
The next digit of our result is 0. 
Result so far: 185697.494186
Subtract 0 from 80 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 16:
If we divide 800 by 172, we get 4 and a remainder of 112.
Write down 4 as next digit of the result. 
Result so far: 185697.49418604
If we take 688 away from 800, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Our division results in 185697.49418604 with a remaining 1.12e-07.