20890684 ÷ 801 
The aim is to understand the frequency of 801 in 20890684.

On to step 1:
801 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 801

On to step 2:
20 divided by 801 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Take the next digit (8) from the dividend and append it to 20, then repeat: 208 / 801

Moving on to step 3:
The number 801 fits into 208 0 times, leaving a remainder of 208.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 208 to get 208.
Append the next digit (9) from the dividend to 208 and continue with: 2089 / 801

On to step 4:
If we divide 2089 by 801, we get 2 and a remainder of 487.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 1602 from 2089, we get 487.
Include the next digit (0) from the dividend after 487, then repeat: 4870 / 801

Let's proceed to step 5:
801 goes into 4870 6 times with a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 26.0
Subtract 4806 from 4870 to get 64.
Grab the next digit (6) from the dividend, add it to 64, then carry on: 646 / 801

On to step 6:
646 divided by 801 is 0 with a remainder of 646.
The next digit of our result is 0. 
Result so far: 260.0
Subtract 0 from 646 to get 646.
Append the next digit (8) from the dividend to 646 and continue with: 6468 / 801

Let's proceed to step 7:
When dividing 6468 by 801, we get 8 with a remainder of 60.
Record the quotient 8 as the next digit in the result. 
Result so far: 2608.0
Subtracting 6408 from 6468 leaves us with 60.
Bring next digit (4) of the dividend behind the 60 and repeat the process: 604 / 801

Going ahead to step 8:
If we divide 604 by 801, we get 0 and a remainder of 604.
Record the quotient 0 as the next digit in the result. 
Result so far: 26080.0
Subtracting 0 from 604 leaves us with 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

Let's proceed to step 9:
801 goes into 6040 7 times with a remainder of 433.
Use 7 as the next digit of our solution. 
Result so far: 26080.7
Subtracting 5607 from 6040 leaves us with 433.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4330, and continue the process.

Going ahead to step 10:
The number 801 fits into 4330 5 times, leaving a remainder of 325.
The number 5 becomes the next digit in our result. 
Result so far: 26080.75
The remainder is 325 after subtracting 4005 from 4330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

On to step 11:
801 can be fit into 3250 4 times, resulting in a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 26080.754
If we subtract 3204 from 3250, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 12:
801 goes into 460 0 times with a remainder of 460.
The next digit of our result is 0. 
Result so far: 26080.754
Deduct 0 from 460 and we're left with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

On to step 13:
4600 divided by 801 is 5 with a remainder of 595.
Put 5 as the next digit of the answer. 
Result so far: 26080.75405
Subtracting 4005 from 4600 leaves us with 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Going ahead to step 14:
801 can be fit into 5950 7 times, resulting in a remainder of 343.
Record the quotient 7 as the next digit in the result. 
Result so far: 26080.754057
Subtract 5607 from 5950 to get 343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

Step 15:
801 can be fit into 3430 4 times, resulting in a remainder of 226.
Use 4 as the next digit of our solution. 
Result so far: 26080.7540574
If we subtract 3204 from 3430, we get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Let's proceed to step 16:
The number 801 fits into 2260 2 times, leaving a remainder of 658.
The number 2 becomes the next digit in our result. 
Result so far: 26080.75405742
If we take 1602 away from 2260, we end up with 658.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6580, and continue the process.

The final outcome is 26080.75405742, with a leftover of 6.58e-07.