We're dividing 72131886 by 851 
Our goal is to divide 72131886 by 851.

Going ahead to step 1:
When dividing 7 by 851, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 851

Advancing to step 2:
851 goes into 72 0 times with a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Bring next digit (1) of the dividend behind the 72 and repeat the process: 721 / 851

Step 3:
851 can be fit into 721 0 times, resulting in a remainder of 721.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 721, we get 721.
Include the next digit (3) from the dividend after 721, then repeat: 7213 / 851

Step 4:
If we divide 7213 by 851, we get 8 and a remainder of 405.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 6808 from 7213 leaves us with 405.
Fetch the next digit (1) from the dividend, attach it to 405 and continue: 4051 / 851

On to step 5:
If we divide 4051 by 851, we get 4 and a remainder of 647.
Write down 4 as next digit of the result. 
Result so far: 84.0
If we take 3404 away from 4051, we end up with 647.
Grab the next digit (8) from the dividend, add it to 647, then carry on: 6478 / 851

Advancing to step 6:
When dividing 6478 by 851, we get 7 with a remainder of 521.
The next digit of our result is 7. 
Result so far: 847.0
Deduct 5957 from 6478 and we're left with 521.
Fetch the next digit (8) from the dividend, attach it to 521 and continue: 5218 / 851

Moving on to step 7:
The number 851 fits into 5218 6 times, leaving a remainder of 112.
Write down 6 as next digit of the result. 
Result so far: 8476.0
Subtract 5106 from 5218 to get 112.
Grab the next digit (6) from the dividend, add it to 112, then carry on: 1126 / 851

Going ahead to step 8:
When dividing 1126 by 851, we get 1 with a remainder of 275.
Use 1 as the next digit of our solution. 
Result so far: 84761.0
Subtract 851 from 1126 to get 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Going ahead to step 9:
2750 divided by 851 is 3 with a remainder of 197.
Record the quotient 3 as the next digit in the result. 
Result so far: 84761.3
Deduct 2553 from 2750 and we're left with 197.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Advancing to step 10:
The number 851 fits into 1970 2 times, leaving a remainder of 268.
The next digit of our result is 2. 
Result so far: 84761.32
Subtract 1702 from 1970 to get 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Let's proceed to step 11:
The number 851 fits into 2680 3 times, leaving a remainder of 127.
The number 3 becomes the next digit in our result. 
Result so far: 84761.323
If we subtract 2553 from 2680, we get 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

On to step 12:
When dividing 1270 by 851, we get 1 with a remainder of 419.
Write down 1 as next digit of the result. 
Result so far: 84761.3231
If we take 851 away from 1270, we end up with 419.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Step 13:
4190 divided by 851 is 4 with a remainder of 786.
Record the quotient 4 as the next digit in the result. 
Result so far: 84761.32314
Subtracting 3404 from 4190 leaves us with 786.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7860, and continue the process.

Step 14:
When dividing 7860 by 851, we get 9 with a remainder of 201.
Record the quotient 9 as the next digit in the result. 
Result so far: 84761.323149
Subtracting 7659 from 7860 leaves us with 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Moving on to step 15:
851 can be fit into 2010 2 times, resulting in a remainder of 308.
The next digit of our result is 2. 
Result so far: 84761.3231492
If we take 1702 away from 2010, we end up with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Step 16:
If we divide 3080 by 851, we get 3 and a remainder of 527.
Record the quotient 3 as the next digit in the result. 
Result so far: 84761.32314923
Subtract 2553 from 3080 to get 527.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5270, and continue the process.

After the division, we end up with 84761.32314923 and a remainder of 5.27e-07.