90353838 ÷ 281 
The aim is to understand the frequency of 281 in 90353838.

Let's proceed to step 1:
281 can be fit into 9 0 times, resulting in a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 281

Step 2:
When dividing 90 by 281, we get 0 with a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Include the next digit (3) from the dividend after 90, then repeat: 903 / 281

Step 3:
The number 281 fits into 903 3 times, leaving a remainder of 60.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 843 away from 903, we end up with 60.
Append the next digit (5) from the dividend to 60 and continue with: 605 / 281

Advancing to step 4:
281 can be fit into 605 2 times, resulting in a remainder of 43.
The number 2 becomes the next digit in our result. 
Result so far: 32.0
Deduct 562 from 605 and we're left with 43.
Append the next digit (3) from the dividend to 43 and continue with: 433 / 281

On to step 5:
433 divided by 281 is 1 with a remainder of 152.
Record the quotient 1 as the next digit in the result. 
Result so far: 321.0
If we subtract 281 from 433, we get 152.
Append the next digit (8) from the dividend to 152 and continue with: 1528 / 281

Advancing to step 6:
The number 281 fits into 1528 5 times, leaving a remainder of 123.
Use 5 as the next digit of our solution. 
Result so far: 3215.0
Subtracting 1405 from 1528 leaves us with 123.
Grab the next digit (3) from the dividend, add it to 123, then carry on: 1233 / 281

Moving on to step 7:
The number 281 fits into 1233 4 times, leaving a remainder of 109.
Put 4 as the next digit of the answer. 
Result so far: 32154.0
Subtracting 1124 from 1233 leaves us with 109.
Append the next digit (8) from the dividend to 109 and continue with: 1098 / 281

Going ahead to step 8:
If we divide 1098 by 281, we get 3 and a remainder of 255.
Write down 3 as next digit of the result. 
Result so far: 321543.0
If we take 843 away from 1098, we end up with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Going ahead to step 9:
The number 281 fits into 2550 9 times, leaving a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 321543.9
If we take 2529 away from 2550, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 10:
If we divide 210 by 281, we get 0 and a remainder of 210.
Write down 0 as next digit of the result. 
Result so far: 321543.9
Subtracting 0 from 210 leaves us with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Advancing to step 11:
281 goes into 2100 7 times with a remainder of 133.
The next digit of our result is 7. 
Result so far: 321543.907
Deduct 1967 from 2100 and we're left with 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

Step 12:
When dividing 1330 by 281, we get 4 with a remainder of 206.
Put 4 as the next digit of the answer. 
Result so far: 321543.9074
Subtract 1124 from 1330 to get 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Advancing to step 13:
When dividing 2060 by 281, we get 7 with a remainder of 93.
Write down 7 as next digit of the result. 
Result so far: 321543.90747
If we take 1967 away from 2060, we end up with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

On to step 14:
281 goes into 930 3 times with a remainder of 87.
The next digit of our result is 3. 
Result so far: 321543.907473
Deduct 843 from 930 and we're left with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Let's proceed to step 15:
281 goes into 870 3 times with a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 321543.9074733
The remainder is 27 after subtracting 843 from 870.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

The final outcome is 321543.9074733, with a leftover of 2.7e-07.