131143 divided by 81 
We want to figure out the number of times 131143 can be divided by 81.

Step 1:
If we divide 1 by 81, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 81

Step 2:
If we divide 13 by 81, we get 0 and a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Include the next digit (1) from the dividend after 13, then repeat: 131 / 81

Step 3:
When dividing 131 by 81, we get 1 with a remainder of 50.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 50 after subtracting 81 from 131.
Include the next digit (1) from the dividend after 50, then repeat: 501 / 81

Let's proceed to step 4:
81 goes into 501 6 times with a remainder of 15.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we take 486 away from 501, we end up with 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 81

Step 5:
When dividing 154 by 81, we get 1 with a remainder of 73.
Put 1 as the next digit of the answer. 
Result so far: 161.0
Subtracting 81 from 154 leaves us with 73.
Take the next digit (3) from the dividend and append it to 73, then repeat: 733 / 81

Step 6:
If we divide 733 by 81, we get 9 and a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 1619.0
The remainder is 4 after subtracting 729 from 733.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 7:
If we divide 40 by 81, we get 0 and a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 1619.0
The remainder is 40 after subtracting 0 from 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 8:
81 goes into 400 4 times with a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 1619.04
The remainder is 76 after subtracting 324 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 9:
81 goes into 760 9 times with a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 1619.049
Subtract 729 from 760 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 10:
If we divide 310 by 81, we get 3 and a remainder of 67.
Put 3 as the next digit of the answer. 
Result so far: 1619.0493
If we take 243 away from 310, we end up with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 11:
81 can be fit into 670 8 times, resulting in a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 1619.04938
Subtract 648 from 670 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 12:
If we divide 220 by 81, we get 2 and a remainder of 58.
The number 2 becomes the next digit in our result. 
Result so far: 1619.049382
Deduct 162 from 220 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 13:
81 goes into 580 7 times with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 1619.0493827
Subtract 567 from 580 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 14:
130 divided by 81 is 1 with a remainder of 49.
The next digit of our result is 1. 
Result so far: 1619.04938271
The remainder is 49 after subtracting 81 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

The quotient of the division is 1619.04938271, and the remainder is 4.9e-08.