We look at the division of 353121 by 99 
We want to divide 353121 by 99.

Let's proceed to step 1:
If we divide 3 by 99, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 99

Moving on to step 2:
35 divided by 99 is 0 with a remainder of 35.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 35 and we're left with 35.
Append the next digit (3) from the dividend to 35 and continue with: 353 / 99

Going ahead to step 3:
If we divide 353 by 99, we get 3 and a remainder of 56.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 56 after subtracting 297 from 353.
Include the next digit (1) from the dividend after 56, then repeat: 561 / 99

Step 4:
If we divide 561 by 99, we get 5 and a remainder of 66.
Use 5 as the next digit of our solution. 
Result so far: 35.0
Subtract 495 from 561 to get 66.
Grab the next digit (2) from the dividend, add it to 66, then carry on: 662 / 99

Step 5:
When dividing 662 by 99, we get 6 with a remainder of 68.
Record the quotient 6 as the next digit in the result. 
Result so far: 356.0
If we subtract 594 from 662, we get 68.
Take the next digit (1) from the dividend and append it to 68, then repeat: 681 / 99

Let's proceed to step 6:
If we divide 681 by 99, we get 6 and a remainder of 87.
Record the quotient 6 as the next digit in the result. 
Result so far: 3566.0
If we take 594 away from 681, we end up with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Moving on to step 7:
99 can be fit into 870 8 times, resulting in a remainder of 78.
Use 8 as the next digit of our solution. 
Result so far: 3566.8
Deduct 792 from 870 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 8:
99 can be fit into 780 7 times, resulting in a remainder of 87.
Record the quotient 7 as the next digit in the result. 
Result so far: 3566.87
Deduct 693 from 780 and we're left with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Moving on to step 9:
When dividing 870 by 99, we get 8 with a remainder of 78.
The number 8 becomes the next digit in our result. 
Result so far: 3566.878
Deduct 792 from 870 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 10:
The number 99 fits into 780 7 times, leaving a remainder of 87.
The next digit of our result is 7. 
Result so far: 3566.8787
The remainder is 87 after subtracting 693 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Moving on to step 11:
870 divided by 99 is 8 with a remainder of 78.
Put 8 as the next digit of the answer. 
Result so far: 3566.87878
The remainder is 78 after subtracting 792 from 870.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 12:
99 goes into 780 7 times with a remainder of 87.
Put 7 as the next digit of the answer. 
Result so far: 3566.878787
If we subtract 693 from 780, we get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

On to step 13:
If we divide 870 by 99, we get 8 and a remainder of 78.
Write down 8 as next digit of the result. 
Result so far: 3566.8787878
If we take 792 away from 870, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 14:
The number 99 fits into 780 7 times, leaving a remainder of 87.
Record the quotient 7 as the next digit in the result. 
Result so far: 3566.87878787
Subtracting 693 from 780 leaves us with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

In conclusion, the division gives 3566.87878787 with a balance of 8.7e-08.