We're dividing 99838899 by 438 
The aim is to understand the frequency of 438 in 99838899.

Moving on to step 1:
When dividing 9 by 438, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 438

Advancing to step 2:
The number 438 fits into 99 0 times, leaving a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 99, we get 99.
Append the next digit (8) from the dividend to 99 and continue with: 998 / 438

Moving on to step 3:
The number 438 fits into 998 2 times, leaving a remainder of 122.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 876 away from 998, we end up with 122.
Grab the next digit (3) from the dividend, add it to 122, then carry on: 1223 / 438

Advancing to step 4:
When dividing 1223 by 438, we get 2 with a remainder of 347.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
Subtract 876 from 1223 to get 347.
Grab the next digit (8) from the dividend, add it to 347, then carry on: 3478 / 438

Advancing to step 5:
438 can be fit into 3478 7 times, resulting in a remainder of 412.
Record the quotient 7 as the next digit in the result. 
Result so far: 227.0
Deduct 3066 from 3478 and we're left with 412.
Take the next digit (8) from the dividend and append it to 412, then repeat: 4128 / 438

Let's proceed to step 6:
438 can be fit into 4128 9 times, resulting in a remainder of 186.
The next digit of our result is 9. 
Result so far: 2279.0
If we take 3942 away from 4128, we end up with 186.
Append the next digit (9) from the dividend to 186 and continue with: 1869 / 438

Step 7:
If we divide 1869 by 438, we get 4 and a remainder of 117.
Write down 4 as next digit of the result. 
Result so far: 22794.0
Deduct 1752 from 1869 and we're left with 117.
Include the next digit (9) from the dividend after 117, then repeat: 1179 / 438

Step 8:
1179 divided by 438 is 2 with a remainder of 303.
Write down 2 as next digit of the result. 
Result so far: 227942.0
If we subtract 876 from 1179, we get 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

Step 9:
438 goes into 3030 6 times with a remainder of 402.
The number 6 becomes the next digit in our result. 
Result so far: 227942.6
The remainder is 402 after subtracting 2628 from 3030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Advancing to step 10:
When dividing 4020 by 438, we get 9 with a remainder of 78.
Record the quotient 9 as the next digit in the result. 
Result so far: 227942.69
If we subtract 3942 from 4020, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 11:
When dividing 780 by 438, we get 1 with a remainder of 342.
Write down 1 as next digit of the result. 
Result so far: 227942.691
Deduct 438 from 780 and we're left with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Moving on to step 12:
When dividing 3420 by 438, we get 7 with a remainder of 354.
Record the quotient 7 as the next digit in the result. 
Result so far: 227942.6917
Subtracting 3066 from 3420 leaves us with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

On to step 13:
438 goes into 3540 8 times with a remainder of 36.
The next digit of our result is 8. 
Result so far: 227942.69178
The remainder is 36 after subtracting 3504 from 3540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 14:
The number 438 fits into 360 0 times, leaving a remainder of 360.
The next digit of our result is 0. 
Result so far: 227942.69178
Subtracting 0 from 360 leaves us with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Going ahead to step 15:
The number 438 fits into 3600 8 times, leaving a remainder of 96.
Record the quotient 8 as the next digit in the result. 
Result so far: 227942.6917808
Subtract 3504 from 3600 to get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Going ahead to step 16:
When dividing 960 by 438, we get 2 with a remainder of 84.
Put 2 as the next digit of the answer. 
Result so far: 227942.69178082
If we subtract 876 from 960, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

The quotient of the division is 227942.69178082, and the remainder is 8.4e-08.