We're dividing 28108381 by 290 
The aim is to understand the frequency of 290 in 28108381.

Step 1:
The number 290 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 290

On to step 2:
If we divide 28 by 290, we get 0 and a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Append the next digit (1) from the dividend to 28 and continue with: 281 / 290

Going ahead to step 3:
The number 290 fits into 281 0 times, leaving a remainder of 281.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 281, we get 281.
Grab the next digit (0) from the dividend, add it to 281, then carry on: 2810 / 290

Moving on to step 4:
When dividing 2810 by 290, we get 9 with a remainder of 200.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we take 2610 away from 2810, we end up with 200.
Grab the next digit (8) from the dividend, add it to 200, then carry on: 2008 / 290

Going ahead to step 5:
When dividing 2008 by 290, we get 6 with a remainder of 268.
Write down 6 as next digit of the result. 
Result so far: 96.0
The remainder is 268 after subtracting 1740 from 2008.
Bring next digit (3) of the dividend behind the 268 and repeat the process: 2683 / 290

Going ahead to step 6:
If we divide 2683 by 290, we get 9 and a remainder of 73.
Write down 9 as next digit of the result. 
Result so far: 969.0
If we take 2610 away from 2683, we end up with 73.
Grab the next digit (8) from the dividend, add it to 73, then carry on: 738 / 290

Going ahead to step 7:
290 can be fit into 738 2 times, resulting in a remainder of 158.
Record the quotient 2 as the next digit in the result. 
Result so far: 9692.0
Subtracting 580 from 738 leaves us with 158.
Take the next digit (1) from the dividend and append it to 158, then repeat: 1581 / 290

Advancing to step 8:
290 can be fit into 1581 5 times, resulting in a remainder of 131.
Put 5 as the next digit of the answer. 
Result so far: 96925.0
If we take 1450 away from 1581, we end up with 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Advancing to step 9:
290 can be fit into 1310 4 times, resulting in a remainder of 150.
Put 4 as the next digit of the answer. 
Result so far: 96925.4
If we subtract 1160 from 1310, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Step 10:
1500 divided by 290 is 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 96925.45
Deduct 1450 from 1500 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 11:
If we divide 500 by 290, we get 1 and a remainder of 210.
The number 1 becomes the next digit in our result. 
Result so far: 96925.451
The remainder is 210 after subtracting 290 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 12:
When dividing 2100 by 290, we get 7 with a remainder of 70.
The number 7 becomes the next digit in our result. 
Result so far: 96925.4517
Deduct 2030 from 2100 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 13:
290 goes into 700 2 times with a remainder of 120.
The next digit of our result is 2. 
Result so far: 96925.45172
Subtracting 580 from 700 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 14:
The number 290 fits into 1200 4 times, leaving a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 96925.451724
Subtracting 1160 from 1200 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 15:
400 divided by 290 is 1 with a remainder of 110.
Put 1 as the next digit of the answer. 
Result so far: 96925.4517241
Subtracting 290 from 400 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 16:
If we divide 1100 by 290, we get 3 and a remainder of 230.
The next digit of our result is 3. 
Result so far: 96925.45172413
If we subtract 870 from 1100, we get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

After the division, we end up with 96925.45172413 and a remainder of 2.3e-07.