We divide 121209 by 81
We're looking to find how many times 81 goes into 121209.

Step 1:
If we divide 1 by 81, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 81

Advancing to step 2:
81 goes into 12 0 times with a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 81

Step 3:
When dividing 121 by 81, we get 1 with a remainder of 40.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 81 from 121 and we're left with 40.
Append the next digit (2) from the dividend to 40 and continue with: 402 / 81

Moving on to step 4:
The number 81 fits into 402 4 times, leaving a remainder of 78.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtract 324 from 402 to get 78.
Bring next digit (0) of the dividend behind the 78 and repeat the process: 780 / 81

Advancing to step 5:
When dividing 780 by 81, we get 9 with a remainder of 51.
Put 9 as the next digit of the answer. 
Result so far: 149.0
Subtracting 729 from 780 leaves us with 51.
Append the next digit (9) from the dividend to 51 and continue with: 519 / 81

Step 6:
If we divide 519 by 81, we get 6 and a remainder of 33.
Record the quotient 6 as the next digit in the result. 
Result so far: 1496.0
Subtracting 486 from 519 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 7:
When dividing 330 by 81, we get 4 with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 1496.4
Subtracting 324 from 330 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 8:
81 goes into 60 0 times with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 1496.4
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 9:
600 divided by 81 is 7 with a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 1496.407
If we take 567 away from 600, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 10:
330 divided by 81 is 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 1496.4074
The remainder is 6 after subtracting 324 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 11:
If we divide 60 by 81, we get 0 and a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 1496.4074
Subtracting 0 from 60 leaves us 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.

Advancing to step 12:
81 can be fit into 600 7 times, resulting in a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 1496.407407
Subtract 567 from 600 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 13:
The number 81 fits into 330 4 times, leaving a remainder of 6.
The next digit of our result is 4. 
Result so far: 1496.4074074
Deduct 324 from 330 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 14:
60 divided by 81 is 0 with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 1496.4074074
If we take 0 away from 60, 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.

The final result is 1496.4074074 with a remainder of 6e-08.