Let's divide 121979 by 81
We want to figure out the number of times 121979 can be divided by 81.

Going ahead to step 1:
If we divide 1 by 81, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 81

Let's proceed to step 2:
If we divide 12 by 81, we get 0 and a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 81

On to step 3:
When dividing 121 by 81, we get 1 with a remainder of 40.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 81 from 121, we get 40.
Grab the next digit (9) from the dividend, add it to 40, then carry on: 409 / 81

Let's proceed to step 4:
409 divided by 81 is 5 with a remainder of 4.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we subtract 405 from 409, we get 4.
Grab the next digit (7) from the dividend, add it to 4, then carry on: 47 / 81

Step 5:
81 can be fit into 47 0 times, resulting in a remainder of 47.
Record the quotient 0 as the next digit in the result. 
Result so far: 150.0
The remainder is 47 after subtracting 0 from 47.
Bring next digit (9) of the dividend behind the 47 and repeat the process: 479 / 81

Step 6:
81 goes into 479 5 times with a remainder of 74.
Record the quotient 5 as the next digit in the result. 
Result so far: 1505.0
If we subtract 405 from 479, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 7:
The number 81 fits into 740 9 times, leaving a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 1505.9
Subtract 729 from 740 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 8:
81 goes into 110 1 times with a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 1505.91
If we take 81 away from 110, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 9:
290 divided by 81 is 3 with a remainder of 47.
Use 3 as the next digit of our solution. 
Result so far: 1505.913
If we subtract 243 from 290, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 10:
81 goes into 470 5 times with a remainder of 65.
The next digit of our result is 5. 
Result so far: 1505.9135
Deduct 405 from 470 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 11:
650 divided by 81 is 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 1505.91358
If we subtract 648 from 650, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 12:
If we divide 20 by 81, we get 0 and a remainder of 20.
The next digit of our result is 0. 
Result so far: 1505.91358
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 13:
The number 81 fits into 200 2 times, leaving a remainder of 38.
Write down 2 as next digit of the result. 
Result so far: 1505.9135802
Deduct 162 from 200 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 14:
If we divide 380 by 81, we get 4 and a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 1505.91358024
Subtracting 324 from 380 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The quotient of the division is 1505.91358024, and the remainder is 5.6e-08.