We look at the division of 123164 by 81 
We're looking to find how many times 81 goes into 123164.

Going ahead to step 1:
If we divide 1 by 81, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 81

On to step 2:
12 divided by 81 is 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Bring next digit (3) of the dividend behind the 12 and repeat the process: 123 / 81

Advancing to step 3:
81 goes into 123 1 times with a remainder of 42.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 81 from 123, we get 42.
Grab the next digit (1) from the dividend, add it to 42, then carry on: 421 / 81

Going ahead to step 4:
If we divide 421 by 81, we get 5 and a remainder of 16.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtracting 405 from 421 leaves us with 16.
Grab the next digit (6) from the dividend, add it to 16, then carry on: 166 / 81

Let's proceed to step 5:
81 can be fit into 166 2 times, resulting in a remainder of 4.
The next digit of our result is 2. 
Result so far: 152.0
Subtracting 162 from 166 leaves us with 4.
Fetch the next digit (4) from the dividend, attach it to 4 and continue: 44 / 81

On to step 6:
44 divided by 81 is 0 with a remainder of 44.
The number 0 becomes the next digit in our result. 
Result so far: 1520.0
Subtracting 0 from 44 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 7:
440 divided by 81 is 5 with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 1520.5
Deduct 405 from 440 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 8:
81 goes into 350 4 times with a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 1520.54
Subtract 324 from 350 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 9:
If we divide 260 by 81, we get 3 and a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 1520.543
Subtracting 243 from 260 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 10:
If we divide 170 by 81, we get 2 and a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 1520.5432
If we subtract 162 from 170, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 11:
When dividing 80 by 81, we get 0 with a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 1520.5432
Deduct 0 from 80 and we're left with 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 12:
When dividing 800 by 81, we get 9 with a remainder of 71.
The number 9 becomes the next digit in our result. 
Result so far: 1520.543209
Deduct 729 from 800 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Advancing to step 13:
When dividing 710 by 81, we get 8 with a remainder of 62.
The next digit of our result is 8. 
Result so far: 1520.5432098
Subtract 648 from 710 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 14:
81 goes into 620 7 times with a remainder of 53.
Use 7 as the next digit of our solution. 
Result so far: 1520.54320987
If we subtract 567 from 620, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

The quotient of the division is 1520.54320987, and the remainder is 5.3e-08.