81751356 ÷ 172 
Our goal is to divide 81751356 by 172.

Step 1:
172 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 172

Moving on to step 2:
When dividing 81 by 172, we get 0 with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Append the next digit (7) from the dividend to 81 and continue with: 817 / 172

Moving on to step 3:
172 can be fit into 817 4 times, resulting in a remainder of 129.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 129 after subtracting 688 from 817.
Fetch the next digit (5) from the dividend, attach it to 129 and continue: 1295 / 172

Advancing to step 4:
172 can be fit into 1295 7 times, resulting in a remainder of 91.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
Subtracting 1204 from 1295 leaves us with 91.
Grab the next digit (1) from the dividend, add it to 91, then carry on: 911 / 172

Let's proceed to step 5:
172 can be fit into 911 5 times, resulting in a remainder of 51.
The next digit of our result is 5. 
Result so far: 475.0
Subtracting 860 from 911 leaves us with 51.
Take the next digit (3) from the dividend and append it to 51, then repeat: 513 / 172

On to step 6:
If we divide 513 by 172, we get 2 and a remainder of 169.
The number 2 becomes the next digit in our result. 
Result so far: 4752.0
Deduct 344 from 513 and we're left with 169.
Grab the next digit (5) from the dividend, add it to 169, then carry on: 1695 / 172

Advancing to step 7:
1695 divided by 172 is 9 with a remainder of 147.
The number 9 becomes the next digit in our result. 
Result so far: 47529.0
Subtracting 1548 from 1695 leaves us with 147.
Append the next digit (6) from the dividend to 147 and continue with: 1476 / 172

Step 8:
172 goes into 1476 8 times with a remainder of 100.
Use 8 as the next digit of our solution. 
Result so far: 475298.0
Deduct 1376 from 1476 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 9:
If we divide 1000 by 172, we get 5 and a remainder of 140.
Record the quotient 5 as the next digit in the result. 
Result so far: 475298.5
Subtract 860 from 1000 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 10:
If we divide 1400 by 172, we get 8 and a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 475298.58
Subtract 1376 from 1400 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 11:
240 divided by 172 is 1 with a remainder of 68.
Use 1 as the next digit of our solution. 
Result so far: 475298.581
The remainder is 68 after subtracting 172 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 12:
If we divide 680 by 172, we get 3 and a remainder of 164.
Use 3 as the next digit of our solution. 
Result so far: 475298.5813
Subtract 516 from 680 to get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

On to step 13:
When dividing 1640 by 172, we get 9 with a remainder of 92.
Write down 9 as next digit of the result. 
Result so far: 475298.58139
If we subtract 1548 from 1640, we get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 14:
The number 172 fits into 920 5 times, leaving a remainder of 60.
Record the quotient 5 as the next digit in the result. 
Result so far: 475298.581395
If we take 860 away from 920, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 15:
When dividing 600 by 172, we get 3 with a remainder of 84.
The next digit of our result is 3. 
Result so far: 475298.5813953
Subtracting 516 from 600 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 16:
If we divide 840 by 172, we get 4 and a remainder of 152.
Put 4 as the next digit of the answer. 
Result so far: 475298.58139534
The remainder is 152 after subtracting 688 from 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

After the division, we end up with 475298.58139534 and a remainder of 1.52e-07.