We're dividing 89988490 by 439 
The aim is to understand the frequency of 439 in 89988490.

Step 1:
If we divide 8 by 439, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 439

On to step 2:
89 divided by 439 is 0 with a remainder of 89.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 89 after subtracting 0 from 89.
Include the next digit (9) from the dividend after 89, then repeat: 899 / 439

Moving on to step 3:
When dividing 899 by 439, we get 2 with a remainder of 21.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 878 from 899, we get 21.
Bring next digit (8) of the dividend behind the 21 and repeat the process: 218 / 439

Step 4:
218 divided by 439 is 0 with a remainder of 218.
Use 0 as the next digit of our solution. 
Result so far: 20.0
If we subtract 0 from 218, we get 218.
Include the next digit (8) from the dividend after 218, then repeat: 2188 / 439

Moving on to step 5:
The number 439 fits into 2188 4 times, leaving a remainder of 432.
Use 4 as the next digit of our solution. 
Result so far: 204.0
If we subtract 1756 from 2188, we get 432.
Fetch the next digit (4) from the dividend, attach it to 432 and continue: 4324 / 439

On to step 6:
4324 divided by 439 is 9 with a remainder of 373.
Write down 9 as next digit of the result. 
Result so far: 2049.0
Subtract 3951 from 4324 to get 373.
Take the next digit (9) from the dividend and append it to 373, then repeat: 3739 / 439

Advancing to step 7:
439 goes into 3739 8 times with a remainder of 227.
Write down 8 as next digit of the result. 
Result so far: 20498.0
Subtracting 3512 from 3739 leaves us with 227.
Fetch the next digit (0) from the dividend, attach it to 227 and continue: 2270 / 439

On to step 8:
439 goes into 2270 5 times with a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 204985.0
Subtract 2195 from 2270 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 9:
439 can be fit into 750 1 times, resulting in a remainder of 311.
Record the quotient 1 as the next digit in the result. 
Result so far: 204985.1
The remainder is 311 after subtracting 439 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

Moving on to step 10:
439 goes into 3110 7 times with a remainder of 37.
Put 7 as the next digit of the answer. 
Result so far: 204985.17
Subtracting 3073 from 3110 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 11:
439 can be fit into 370 0 times, resulting in a remainder of 370.
Write down 0 as next digit of the result. 
Result so far: 204985.17
If we take 0 away from 370, we end up with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Advancing to step 12:
When dividing 3700 by 439, we get 8 with a remainder of 188.
The number 8 becomes the next digit in our result. 
Result so far: 204985.1708
If we take 3512 away from 3700, we end up with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Let's proceed to step 13:
1880 divided by 439 is 4 with a remainder of 124.
Put 4 as the next digit of the answer. 
Result so far: 204985.17084
Subtract 1756 from 1880 to get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Step 14:
The number 439 fits into 1240 2 times, leaving a remainder of 362.
Use 2 as the next digit of our solution. 
Result so far: 204985.170842
The remainder is 362 after subtracting 878 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Step 15:
439 can be fit into 3620 8 times, resulting in a remainder of 108.
Record the quotient 8 as the next digit in the result. 
Result so far: 204985.1708428
The remainder is 108 after subtracting 3512 from 3620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Advancing to step 16:
439 goes into 1080 2 times with a remainder of 202.
Write down 2 as next digit of the result. 
Result so far: 204985.17084282
Deduct 878 from 1080 and we're left with 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Our division results in 204985.17084282 with a remaining 2.02e-07.