We're dividing 98525143 by 808 
The aim is to understand the frequency of 808 in 98525143.

On to step 1:
When dividing 9 by 808, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 808

Step 2:
98 divided by 808 is 0 with a remainder of 98.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 98, we end up with 98.
Append the next digit (5) from the dividend to 98 and continue with: 985 / 808

Advancing to step 3:
808 goes into 985 1 times with a remainder of 177.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 808 from 985, we get 177.
Bring next digit (2) of the dividend behind the 177 and repeat the process: 1772 / 808

Step 4:
808 can be fit into 1772 2 times, resulting in a remainder of 156.
The next digit of our result is 2. 
Result so far: 12.0
If we take 1616 away from 1772, we end up with 156.
Fetch the next digit (5) from the dividend, attach it to 156 and continue: 1565 / 808

Step 5:
808 can be fit into 1565 1 times, resulting in a remainder of 757.
The number 1 becomes the next digit in our result. 
Result so far: 121.0
Deduct 808 from 1565 and we're left with 757.
Grab the next digit (1) from the dividend, add it to 757, then carry on: 7571 / 808

Going ahead to step 6:
If we divide 7571 by 808, we get 9 and a remainder of 299.
The number 9 becomes the next digit in our result. 
Result so far: 1219.0
Subtracting 7272 from 7571 leaves us with 299.
Take the next digit (4) from the dividend and append it to 299, then repeat: 2994 / 808

Let's proceed to step 7:
2994 divided by 808 is 3 with a remainder of 570.
The next digit of our result is 3. 
Result so far: 12193.0
If we take 2424 away from 2994, we end up with 570.
Grab the next digit (3) from the dividend, add it to 570, then carry on: 5703 / 808

Step 8:
If we divide 5703 by 808, we get 7 and a remainder of 47.
The number 7 becomes the next digit in our result. 
Result so far: 121937.0
The remainder is 47 after subtracting 5656 from 5703.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 9:
808 goes into 470 0 times with a remainder of 470.
The number 0 becomes the next digit in our result. 
Result so far: 121937.0
If we take 0 away from 470, we end up with 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Going ahead to step 10:
If we divide 4700 by 808, we get 5 and a remainder of 660.
The number 5 becomes the next digit in our result. 
Result so far: 121937.05
The remainder is 660 after subtracting 4040 from 4700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Let's proceed to step 11:
6600 divided by 808 is 8 with a remainder of 136.
Put 8 as the next digit of the answer. 
Result so far: 121937.058
The remainder is 136 after subtracting 6464 from 6600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 12:
If we divide 1360 by 808, we get 1 and a remainder of 552.
Write down 1 as next digit of the result. 
Result so far: 121937.0581
The remainder is 552 after subtracting 808 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Moving on to step 13:
The number 808 fits into 5520 6 times, leaving a remainder of 672.
The next digit of our result is 6. 
Result so far: 121937.05816
Deduct 4848 from 5520 and we're left with 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

Going ahead to step 14:
If we divide 6720 by 808, we get 8 and a remainder of 256.
The number 8 becomes the next digit in our result. 
Result so far: 121937.058168
Subtract 6464 from 6720 to get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Advancing to step 15:
The number 808 fits into 2560 3 times, leaving a remainder of 136.
The next digit of our result is 3. 
Result so far: 121937.0581683
Subtract 2424 from 2560 to get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 16:
808 can be fit into 1360 1 times, resulting in a remainder of 552.
The next digit of our result is 1. 
Result so far: 121937.05816831
The remainder is 552 after subtracting 808 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

The final result is 121937.05816831 with a remainder of 5.52e-07.