We look at the division of 46659639 by 538 
The aim is to understand the frequency of 538 in 46659639.

Step 1:
If we divide 4 by 538, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 538

On to step 2:
When dividing 46 by 538, we get 0 with a remainder of 46.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 46, we end up with 46.
Take the next digit (6) from the dividend and append it to 46, then repeat: 466 / 538

On to step 3:
If we divide 466 by 538, we get 0 and a remainder of 466.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 466, we get 466.
Append the next digit (5) from the dividend to 466 and continue with: 4665 / 538

Advancing to step 4:
If we divide 4665 by 538, we get 8 and a remainder of 361.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 4304 from 4665 to get 361.
Take the next digit (9) from the dividend and append it to 361, then repeat: 3619 / 538

Step 5:
The number 538 fits into 3619 6 times, leaving a remainder of 391.
The next digit of our result is 6. 
Result so far: 86.0
Subtract 3228 from 3619 to get 391.
Take the next digit (6) from the dividend and append it to 391, then repeat: 3916 / 538

Advancing to step 6:
If we divide 3916 by 538, we get 7 and a remainder of 150.
The next digit of our result is 7. 
Result so far: 867.0
The remainder is 150 after subtracting 3766 from 3916.
Take the next digit (3) from the dividend and append it to 150, then repeat: 1503 / 538

On to step 7:
If we divide 1503 by 538, we get 2 and a remainder of 427.
Write down 2 as next digit of the result. 
Result so far: 8672.0
If we take 1076 away from 1503, we end up with 427.
Bring next digit (9) of the dividend behind the 427 and repeat the process: 4279 / 538

On to step 8:
If we divide 4279 by 538, we get 7 and a remainder of 513.
The number 7 becomes the next digit in our result. 
Result so far: 86727.0
The remainder is 513 after subtracting 3766 from 4279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5130, and continue the process.

Moving on to step 9:
538 can be fit into 5130 9 times, resulting in a remainder of 288.
The number 9 becomes the next digit in our result. 
Result so far: 86727.9
Deduct 4842 from 5130 and we're left with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Let's proceed to step 10:
538 can be fit into 2880 5 times, resulting in a remainder of 190.
The next digit of our result is 5. 
Result so far: 86727.95
If we subtract 2690 from 2880, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 11:
538 goes into 1900 3 times with a remainder of 286.
Put 3 as the next digit of the answer. 
Result so far: 86727.953
If we subtract 1614 from 1900, we get 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Let's proceed to step 12:
The number 538 fits into 2860 5 times, leaving a remainder of 170.
Use 5 as the next digit of our solution. 
Result so far: 86727.9535
If we subtract 2690 from 2860, we get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 13:
538 goes into 1700 3 times with a remainder of 86.
The number 3 becomes the next digit in our result. 
Result so far: 86727.95353
If we take 1614 away from 1700, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 14:
860 divided by 538 is 1 with a remainder of 322.
Use 1 as the next digit of our solution. 
Result so far: 86727.953531
If we subtract 538 from 860, we get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Step 15:
538 goes into 3220 5 times with a remainder of 530.
Use 5 as the next digit of our solution. 
Result so far: 86727.9535315
Subtracting 2690 from 3220 leaves us with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Advancing to step 16:
The number 538 fits into 5300 9 times, leaving a remainder of 458.
Record the quotient 9 as the next digit in the result. 
Result so far: 86727.95353159
Subtract 4842 from 5300 to get 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

The quotient of the division is 86727.95353159, and the remainder is 4.58e-07.