We look at the division of 25034196 by 663 
The aim is to understand the frequency of 663 in 25034196.

Moving on to step 1:
663 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 663

Going ahead to step 2:
25 divided by 663 is 0 with a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Fetch the next digit (0) from the dividend, attach it to 25 and continue: 250 / 663

Moving on to step 3:
663 can be fit into 250 0 times, resulting in a remainder of 250.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 250 to get 250.
Bring next digit (3) of the dividend behind the 250 and repeat the process: 2503 / 663

Advancing to step 4:
When dividing 2503 by 663, we get 3 with a remainder of 514.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 1989 from 2503 to get 514.
Include the next digit (4) from the dividend after 514, then repeat: 5144 / 663

On to step 5:
If we divide 5144 by 663, we get 7 and a remainder of 503.
Write down 7 as next digit of the result. 
Result so far: 37.0
If we take 4641 away from 5144, we end up with 503.
Fetch the next digit (1) from the dividend, attach it to 503 and continue: 5031 / 663

On to step 6:
The number 663 fits into 5031 7 times, leaving a remainder of 390.
Put 7 as the next digit of the answer. 
Result so far: 377.0
Subtract 4641 from 5031 to get 390.
Include the next digit (9) from the dividend after 390, then repeat: 3909 / 663

Advancing to step 7:
3909 divided by 663 is 5 with a remainder of 594.
Write down 5 as next digit of the result. 
Result so far: 3775.0
If we subtract 3315 from 3909, we get 594.
Fetch the next digit (6) from the dividend, attach it to 594 and continue: 5946 / 663

Moving on to step 8:
663 goes into 5946 8 times with a remainder of 642.
The next digit of our result is 8. 
Result so far: 37758.0
Deduct 5304 from 5946 and we're left with 642.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6420, and continue the process.

On to step 9:
When dividing 6420 by 663, we get 9 with a remainder of 453.
Use 9 as the next digit of our solution. 
Result so far: 37758.9
If we subtract 5967 from 6420, we get 453.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4530, and continue the process.

Step 10:
663 can be fit into 4530 6 times, resulting in a remainder of 552.
Put 6 as the next digit of the answer. 
Result so far: 37758.96
If we subtract 3978 from 4530, we get 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

On to step 11:
When dividing 5520 by 663, we get 8 with a remainder of 216.
Record the quotient 8 as the next digit in the result. 
Result so far: 37758.968
If we subtract 5304 from 5520, we get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Going ahead to step 12:
When dividing 2160 by 663, we get 3 with a remainder of 171.
The next digit of our result is 3. 
Result so far: 37758.9683
Deduct 1989 from 2160 and we're left with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

On to step 13:
1710 divided by 663 is 2 with a remainder of 384.
Write down 2 as next digit of the result. 
Result so far: 37758.96832
Deduct 1326 from 1710 and we're left with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Advancing to step 14:
If we divide 3840 by 663, we get 5 and a remainder of 525.
Put 5 as the next digit of the answer. 
Result so far: 37758.968325
Subtracting 3315 from 3840 leaves us with 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

On to step 15:
If we divide 5250 by 663, we get 7 and a remainder of 609.
Record the quotient 7 as the next digit in the result. 
Result so far: 37758.9683257
If we subtract 4641 from 5250, we get 609.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6090, and continue the process.

Moving on to step 16:
The number 663 fits into 6090 9 times, leaving a remainder of 123.
The next digit of our result is 9. 
Result so far: 37758.96832579
If we subtract 5967 from 6090, we get 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

In conclusion, the division gives 37758.96832579 with a balance of 1.23e-07.