We're dividing 43465324 by 638 
The aim is to understand the frequency of 638 in 43465324.

Advancing to step 1:
When dividing 4 by 638, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 638

Let's proceed to step 2:
When dividing 43 by 638, we get 0 with a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Include the next digit (4) from the dividend after 43, then repeat: 434 / 638

Advancing to step 3:
638 goes into 434 0 times with a remainder of 434.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 434 after subtracting 0 from 434.
Grab the next digit (6) from the dividend, add it to 434, then carry on: 4346 / 638

Moving on to step 4:
638 goes into 4346 6 times with a remainder of 518.
Use 6 as the next digit of our solution. 
Result so far: 6.0
The remainder is 518 after subtracting 3828 from 4346.
Append the next digit (5) from the dividend to 518 and continue with: 5185 / 638

Let's proceed to step 5:
When dividing 5185 by 638, we get 8 with a remainder of 81.
Put 8 as the next digit of the answer. 
Result so far: 68.0
Subtracting 5104 from 5185 leaves us with 81.
Take the next digit (3) from the dividend and append it to 81, then repeat: 813 / 638

On to step 6:
The number 638 fits into 813 1 times, leaving a remainder of 175.
Use 1 as the next digit of our solution. 
Result so far: 681.0
The remainder is 175 after subtracting 638 from 813.
Take the next digit (2) from the dividend and append it to 175, then repeat: 1752 / 638

On to step 7:
If we divide 1752 by 638, we get 2 and a remainder of 476.
Use 2 as the next digit of our solution. 
Result so far: 6812.0
If we subtract 1276 from 1752, we get 476.
Take the next digit (4) from the dividend and append it to 476, then repeat: 4764 / 638

Moving on to step 8:
If we divide 4764 by 638, we get 7 and a remainder of 298.
Use 7 as the next digit of our solution. 
Result so far: 68127.0
Deduct 4466 from 4764 and we're left with 298.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

Step 9:
The number 638 fits into 2980 4 times, leaving a remainder of 428.
Write down 4 as next digit of the result. 
Result so far: 68127.4
The remainder is 428 after subtracting 2552 from 2980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Going ahead to step 10:
The number 638 fits into 4280 6 times, leaving a remainder of 452.
Put 6 as the next digit of the answer. 
Result so far: 68127.46
If we subtract 3828 from 4280, we get 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Advancing to step 11:
4520 divided by 638 is 7 with a remainder of 54.
The next digit of our result is 7. 
Result so far: 68127.467
Subtracting 4466 from 4520 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 12:
The number 638 fits into 540 0 times, leaving a remainder of 540.
The next digit of our result is 0. 
Result so far: 68127.467
Subtracting 0 from 540 leaves us with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Step 13:
If we divide 5400 by 638, we get 8 and a remainder of 296.
Use 8 as the next digit of our solution. 
Result so far: 68127.46708
If we subtract 5104 from 5400, we get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Advancing to step 14:
The number 638 fits into 2960 4 times, leaving a remainder of 408.
The number 4 becomes the next digit in our result. 
Result so far: 68127.467084
If we take 2552 away from 2960, we end up with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

On to step 15:
638 can be fit into 4080 6 times, resulting in a remainder of 252.
Record the quotient 6 as the next digit in the result. 
Result so far: 68127.4670846
Subtract 3828 from 4080 to get 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Let's proceed to step 16:
When dividing 2520 by 638, we get 3 with a remainder of 606.
Use 3 as the next digit of our solution. 
Result so far: 68127.46708463
If we subtract 1914 from 2520, we get 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

The final result is 68127.46708463 with a remainder of 6.06e-07.