121210 ÷ 81 
We want to figure out the number of times 121210 can be divided by 81.

Going ahead to step 1:
81 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 81

Moving on to step 2:
81 goes into 12 0 times with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 81

Moving on to step 3:
The number 81 fits into 121 1 times, leaving a remainder of 40.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 81 from 121 to get 40.
Take the next digit (2) from the dividend and append it to 40, then repeat: 402 / 81

Advancing to step 4:
81 goes into 402 4 times with a remainder of 78.
The next digit of our result is 4. 
Result so far: 14.0
If we take 324 away from 402, we end up with 78.
Append the next digit (1) from the dividend to 78 and continue with: 781 / 81

Advancing to step 5:
The number 81 fits into 781 9 times, leaving a remainder of 52.
Write down 9 as next digit of the result. 
Result so far: 149.0
Deduct 729 from 781 and we're left with 52.
Grab the next digit (0) from the dividend, add it to 52, then carry on: 520 / 81

Advancing to step 6:
The number 81 fits into 520 6 times, leaving a remainder of 34.
Write down 6 as next digit of the result. 
Result so far: 1496.0
Deduct 486 from 520 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 7:
340 divided by 81 is 4 with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 1496.4
Deduct 324 from 340 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 8:
When dividing 160 by 81, we get 1 with a remainder of 79.
Use 1 as the next digit of our solution. 
Result so far: 1496.41
Subtract 81 from 160 to get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Step 9:
790 divided by 81 is 9 with a remainder of 61.
The next digit of our result is 9. 
Result so far: 1496.419
Subtract 729 from 790 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 10:
When dividing 610 by 81, we get 7 with a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 1496.4197
Subtracting 567 from 610 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 11:
430 divided by 81 is 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 1496.41975
If we take 405 away from 430, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 12:
81 can be fit into 250 3 times, resulting in a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 1496.419753
Subtracting 243 from 250 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 13:
When dividing 70 by 81, we get 0 with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 1496.419753
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 14:
81 goes into 700 8 times with a remainder of 52.
The next digit of our result is 8. 
Result so far: 1496.41975308
The remainder is 52 after subtracting 648 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

In conclusion, the division gives 1496.41975308 with a balance of 5.2e-08.