90259903 divided by 38 
The aim is to understand the frequency of 38 in 90259903.

Let's proceed to step 1:
38 goes into 9 0 times 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.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 38

Advancing to step 2:
If we divide 90 by 38, we get 2 and a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 76 from 90 and we're left with 14.
Include the next digit (2) from the dividend after 14, then repeat: 142 / 38

On to step 3:
142 divided by 38 is 3 with a remainder of 28.
Write down 3 as next digit of the result. 
Result so far: 23.0
If we take 114 away from 142, we end up with 28.
Append the next digit (5) from the dividend to 28 and continue with: 285 / 38

Let's proceed to step 4:
The number 38 fits into 285 7 times, leaving a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 237.0
Subtracting 266 from 285 leaves us with 19.
Fetch the next digit (9) from the dividend, attach it to 19 and continue: 199 / 38

Step 5:
199 divided by 38 is 5 with a remainder of 9.
Write down 5 as next digit of the result. 
Result so far: 2375.0
The remainder is 9 after subtracting 190 from 199.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 38

Let's proceed to step 6:
When dividing 99 by 38, we get 2 with a remainder of 23.
Write down 2 as next digit of the result. 
Result so far: 23752.0
Subtract 76 from 99 to get 23.
Grab the next digit (0) from the dividend, add it to 23, then carry on: 230 / 38

Advancing to step 7:
If we divide 230 by 38, we get 6 and a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 237526.0
Deduct 228 from 230 and we're left with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 38

Moving on to step 8:
38 goes into 23 0 times with a remainder of 23.
The next digit of our result is 0. 
Result so far: 2375260.0
The remainder is 23 after subtracting 0 from 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 9:
38 can be fit into 230 6 times, resulting in a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 2375260.6
Subtracting 228 from 230 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 10:
38 goes into 20 0 times with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 2375260.6
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 11:
38 can be fit into 200 5 times, resulting in a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 2375260.605
The remainder is 10 after subtracting 190 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 12:
The number 38 fits into 100 2 times, leaving a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 2375260.6052
The remainder is 24 after subtracting 76 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 13:
If we divide 240 by 38, we get 6 and a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 2375260.60526
Deduct 228 from 240 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 14:
The number 38 fits into 120 3 times, leaving a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 2375260.605263
Subtract 114 from 120 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 15:
When dividing 60 by 38, we get 1 with a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 2375260.6052631
The remainder is 22 after subtracting 38 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 16:
220 divided by 38 is 5 with a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 2375260.60526315
If we take 190 away from 220, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 2375260.60526315 and a remainder of 3e-08.