99789221 divided by 363 
The aim is to understand the frequency of 363 in 99789221.

On to step 1:
363 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 363

Moving on to step 2:
363 goes into 99 0 times with a remainder of 99.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 99 after subtracting 0 from 99.
Append the next digit (7) from the dividend to 99 and continue with: 997 / 363

Let's proceed to step 3:
997 divided by 363 is 2 with a remainder of 271.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 271 after subtracting 726 from 997.
Fetch the next digit (8) from the dividend, attach it to 271 and continue: 2718 / 363

Going ahead to step 4:
When dividing 2718 by 363, we get 7 with a remainder of 177.
Put 7 as the next digit of the answer. 
Result so far: 27.0
If we subtract 2541 from 2718, we get 177.
Append the next digit (9) from the dividend to 177 and continue with: 1779 / 363

Going ahead to step 5:
When dividing 1779 by 363, we get 4 with a remainder of 327.
The number 4 becomes the next digit in our result. 
Result so far: 274.0
If we take 1452 away from 1779, we end up with 327.
Include the next digit (2) from the dividend after 327, then repeat: 3272 / 363

Advancing to step 6:
363 goes into 3272 9 times with a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 2749.0
If we take 3267 away from 3272, we end up with 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 363

On to step 7:
When dividing 52 by 363, we get 0 with a remainder of 52.
Write down 0 as next digit of the result. 
Result so far: 27490.0
If we take 0 away from 52, we end up with 52.
Append the next digit (1) from the dividend to 52 and continue with: 521 / 363

Going ahead to step 8:
363 goes into 521 1 times with a remainder of 158.
Write down 1 as next digit of the result. 
Result so far: 274901.0
If we subtract 363 from 521, we get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Step 9:
363 can be fit into 1580 4 times, resulting in a remainder of 128.
Record the quotient 4 as the next digit in the result. 
Result so far: 274901.4
Subtracting 1452 from 1580 leaves us with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 10:
The number 363 fits into 1280 3 times, leaving a remainder of 191.
The number 3 becomes the next digit in our result. 
Result so far: 274901.43
Subtract 1089 from 1280 to get 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

Advancing to step 11:
When dividing 1910 by 363, we get 5 with a remainder of 95.
Write down 5 as next digit of the result. 
Result so far: 274901.435
The remainder is 95 after subtracting 1815 from 1910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Moving on to step 12:
363 can be fit into 950 2 times, resulting in a remainder of 224.
Record the quotient 2 as the next digit in the result. 
Result so far: 274901.4352
Deduct 726 from 950 and we're left with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Advancing to step 13:
363 goes into 2240 6 times with a remainder of 62.
Use 6 as the next digit of our solution. 
Result so far: 274901.43526
If we subtract 2178 from 2240, we 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.

Going ahead to step 14:
The number 363 fits into 620 1 times, leaving a remainder of 257.
The next digit of our result is 1. 
Result so far: 274901.435261
If we subtract 363 from 620, we get 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

On to step 15:
If we divide 2570 by 363, we get 7 and a remainder of 29.
Use 7 as the next digit of our solution. 
Result so far: 274901.4352617
Subtracting 2541 from 2570 leaves us 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.

Going ahead to step 16:
363 can be fit into 290 0 times, resulting in a remainder of 290.
The number 0 becomes the next digit in our result. 
Result so far: 274901.4352617
Subtracting 0 from 290 leaves us with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

The quotient of the division is 274901.4352617, and the remainder is 2.9e-07.