We're dividing 90518471 by 239 
The aim is to understand the frequency of 239 in 90518471.

Moving on to step 1:
239 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 239

Advancing to step 2:
When dividing 90 by 239, we get 0 with a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Append the next digit (5) from the dividend to 90 and continue with: 905 / 239

Going ahead to step 3:
When dividing 905 by 239, we get 3 with a remainder of 188.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 717 from 905 leaves us with 188.
Grab the next digit (1) from the dividend, add it to 188, then carry on: 1881 / 239

Moving on to step 4:
239 can be fit into 1881 7 times, resulting in a remainder of 208.
Use 7 as the next digit of our solution. 
Result so far: 37.0
Deduct 1673 from 1881 and we're left with 208.
Bring next digit (8) of the dividend behind the 208 and repeat the process: 2088 / 239

Let's proceed to step 5:
The number 239 fits into 2088 8 times, leaving a remainder of 176.
Write down 8 as next digit of the result. 
Result so far: 378.0
Subtracting 1912 from 2088 leaves us with 176.
Append the next digit (4) from the dividend to 176 and continue with: 1764 / 239

Moving on to step 6:
The number 239 fits into 1764 7 times, leaving a remainder of 91.
The number 7 becomes the next digit in our result. 
Result so far: 3787.0
Subtract 1673 from 1764 to get 91.
Bring next digit (7) of the dividend behind the 91 and repeat the process: 917 / 239

Going ahead to step 7:
239 can be fit into 917 3 times, resulting in a remainder of 200.
Use 3 as the next digit of our solution. 
Result so far: 37873.0
The remainder is 200 after subtracting 717 from 917.
Include the next digit (1) from the dividend after 200, then repeat: 2001 / 239

Moving on to step 8:
2001 divided by 239 is 8 with a remainder of 89.
Put 8 as the next digit of the answer. 
Result so far: 378738.0
The remainder is 89 after subtracting 1912 from 2001.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Let's proceed to step 9:
890 divided by 239 is 3 with a remainder of 173.
Record the quotient 3 as the next digit in the result. 
Result so far: 378738.3
Subtract 717 from 890 to get 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

Going ahead to step 10:
239 goes into 1730 7 times with a remainder of 57.
Use 7 as the next digit of our solution. 
Result so far: 378738.37
If we take 1673 away from 1730, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 11:
239 goes into 570 2 times with a remainder of 92.
The next digit of our result is 2. 
Result so far: 378738.372
Subtract 478 from 570 to get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

On to step 12:
The number 239 fits into 920 3 times, leaving a remainder of 203.
Record the quotient 3 as the next digit in the result. 
Result so far: 378738.3723
Deduct 717 from 920 and we're left with 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Advancing to step 13:
The number 239 fits into 2030 8 times, leaving a remainder of 118.
Use 8 as the next digit of our solution. 
Result so far: 378738.37238
Subtract 1912 from 2030 to get 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Going ahead to step 14:
239 can be fit into 1180 4 times, resulting in a remainder of 224.
Write down 4 as next digit of the result. 
Result so far: 378738.372384
Deduct 956 from 1180 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 15:
The number 239 fits into 2240 9 times, leaving a remainder of 89.
Put 9 as the next digit of the answer. 
Result so far: 378738.3723849
The remainder is 89 after subtracting 2151 from 2240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Step 16:
When dividing 890 by 239, we get 3 with a remainder of 173.
The number 3 becomes the next digit in our result. 
Result so far: 378738.37238493
Subtract 717 from 890 to get 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

The final outcome is 378738.37238493, with a leftover of 1.73e-07.