We're dividing 33930433 by 663 
The aim is to understand the frequency of 663 in 33930433.

On to step 1:
If we divide 3 by 663, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 663

Advancing to step 2:
663 goes into 33 0 times with a remainder of 33.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 33, we get 33.
Append the next digit (9) from the dividend to 33 and continue with: 339 / 663

Step 3:
663 can be fit into 339 0 times, resulting in a remainder of 339.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 339 and we're left with 339.
Take the next digit (3) from the dividend and append it to 339, then repeat: 3393 / 663

Step 4:
The number 663 fits into 3393 5 times, leaving a remainder of 78.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 3315 away from 3393, we end up with 78.
Grab the next digit (0) from the dividend, add it to 78, then carry on: 780 / 663

Let's proceed to step 5:
780 divided by 663 is 1 with a remainder of 117.
Put 1 as the next digit of the answer. 
Result so far: 51.0
If we take 663 away from 780, we end up with 117.
Include the next digit (4) from the dividend after 117, then repeat: 1174 / 663

Advancing to step 6:
The number 663 fits into 1174 1 times, leaving a remainder of 511.
The number 1 becomes the next digit in our result. 
Result so far: 511.0
If we subtract 663 from 1174, we get 511.
Include the next digit (3) from the dividend after 511, then repeat: 5113 / 663

Step 7:
663 can be fit into 5113 7 times, resulting in a remainder of 472.
Record the quotient 7 as the next digit in the result. 
Result so far: 5117.0
If we take 4641 away from 5113, we end up with 472.
Include the next digit (3) from the dividend after 472, then repeat: 4723 / 663

On to step 8:
663 goes into 4723 7 times with a remainder of 82.
The next digit of our result is 7. 
Result so far: 51177.0
Deduct 4641 from 4723 and we're left with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

On to step 9:
When dividing 820 by 663, we get 1 with a remainder of 157.
The number 1 becomes the next digit in our result. 
Result so far: 51177.1
Subtracting 663 from 820 leaves us with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

On to step 10:
1570 divided by 663 is 2 with a remainder of 244.
The number 2 becomes the next digit in our result. 
Result so far: 51177.12
Subtracting 1326 from 1570 leaves us with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

On to step 11:
When dividing 2440 by 663, we get 3 with a remainder of 451.
Put 3 as the next digit of the answer. 
Result so far: 51177.123
If we take 1989 away from 2440, we end up with 451.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4510, and continue the process.

Let's proceed to step 12:
663 can be fit into 4510 6 times, resulting in a remainder of 532.
The number 6 becomes the next digit in our result. 
Result so far: 51177.1236
Subtract 3978 from 4510 to get 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Advancing to step 13:
663 can be fit into 5320 8 times, resulting in a remainder of 16.
The next digit of our result is 8. 
Result so far: 51177.12368
Subtract 5304 from 5320 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 14:
The number 663 fits into 160 0 times, leaving a remainder of 160.
The number 0 becomes the next digit in our result. 
Result so far: 51177.12368
If we take 0 away from 160, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 15:
If we divide 1600 by 663, we get 2 and a remainder of 274.
Write down 2 as next digit of the result. 
Result so far: 51177.1236802
Deduct 1326 from 1600 and we're left with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Step 16:
663 can be fit into 2740 4 times, resulting in a remainder of 88.
The number 4 becomes the next digit in our result. 
Result so far: 51177.12368024
Subtract 2652 from 2740 to get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

In conclusion, the division gives 51177.12368024 with a balance of 8.8e-08.