We look at the division of 20998668 by 801 
The aim is to understand the frequency of 801 in 20998668.

Moving on to step 1:
2 divided by 801 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 801

Step 2:
801 goes into 20 0 times with a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 20, we end up with 20.
Grab the next digit (9) from the dividend, add it to 20, then carry on: 209 / 801

Let's proceed to step 3:
801 goes into 209 0 times with a remainder of 209.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 209, we end up with 209.
Fetch the next digit (9) from the dividend, attach it to 209 and continue: 2099 / 801

Step 4:
The number 801 fits into 2099 2 times, leaving a remainder of 497.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 1602 from 2099, we get 497.
Bring next digit (8) of the dividend behind the 497 and repeat the process: 4978 / 801

Let's proceed to step 5:
When dividing 4978 by 801, we get 6 with a remainder of 172.
Put 6 as the next digit of the answer. 
Result so far: 26.0
The remainder is 172 after subtracting 4806 from 4978.
Include the next digit (6) from the dividend after 172, then repeat: 1726 / 801

Step 6:
801 can be fit into 1726 2 times, resulting in a remainder of 124.
The number 2 becomes the next digit in our result. 
Result so far: 262.0
The remainder is 124 after subtracting 1602 from 1726.
Fetch the next digit (6) from the dividend, attach it to 124 and continue: 1246 / 801

Moving on to step 7:
If we divide 1246 by 801, we get 1 and a remainder of 445.
The number 1 becomes the next digit in our result. 
Result so far: 2621.0
Deduct 801 from 1246 and we're left with 445.
Append the next digit (8) from the dividend to 445 and continue with: 4458 / 801

On to step 8:
When dividing 4458 by 801, we get 5 with a remainder of 453.
Put 5 as the next digit of the answer. 
Result so far: 26215.0
Subtracting 4005 from 4458 leaves us with 453.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4530, and continue the process.

Advancing to step 9:
801 goes into 4530 5 times with a remainder of 525.
Put 5 as the next digit of the answer. 
Result so far: 26215.5
The remainder is 525 after subtracting 4005 from 4530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Going ahead to step 10:
If we divide 5250 by 801, we get 6 and a remainder of 444.
Record the quotient 6 as the next digit in the result. 
Result so far: 26215.56
Deduct 4806 from 5250 and we're left with 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Advancing to step 11:
If we divide 4440 by 801, we get 5 and a remainder of 435.
The next digit of our result is 5. 
Result so far: 26215.565
If we take 4005 away from 4440, we end up with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

Step 12:
If we divide 4350 by 801, we get 5 and a remainder of 345.
Record the quotient 5 as the next digit in the result. 
Result so far: 26215.5655
The remainder is 345 after subtracting 4005 from 4350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

The final outcome is 26215.5655, with a leftover of 0.00345.