80201639 divided by 400 
The aim is to understand the frequency of 400 in 80201639.

Moving on to step 1:
When dividing 8 by 400, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 400

Let's proceed to step 2:
400 can be fit into 80 0 times, resulting in a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Take the next digit (2) from the dividend and append it to 80, then repeat: 802 / 400

Let's proceed to step 3:
400 goes into 802 2 times with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 800 away from 802, we end up with 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 400

Going ahead to step 4:
20 divided by 400 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 20.0
Subtracting 0 from 20 leaves us with 20.
Fetch the next digit (1) from the dividend, attach it to 20 and continue: 201 / 400

Going ahead to step 5:
201 divided by 400 is 0 with a remainder of 201.
Write down 0 as next digit of the result. 
Result so far: 200.0
If we subtract 0 from 201, we get 201.
Include the next digit (6) from the dividend after 201, then repeat: 2016 / 400

On to step 6:
400 can be fit into 2016 5 times, resulting in a remainder of 16.
The next digit of our result is 5. 
Result so far: 2005.0
Deduct 2000 from 2016 and we're left with 16.
Take the next digit (3) from the dividend and append it to 16, then repeat: 163 / 400

On to step 7:
If we divide 163 by 400, we get 0 and a remainder of 163.
The next digit of our result is 0. 
Result so far: 20050.0
Subtracting 0 from 163 leaves us with 163.
Append the next digit (9) from the dividend to 163 and continue with: 1639 / 400

Moving on to step 8:
When dividing 1639 by 400, we get 4 with a remainder of 39.
Record the quotient 4 as the next digit in the result. 
Result so far: 200504.0
Subtract 1600 from 1639 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 9:
The number 400 fits into 390 0 times, leaving a remainder of 390.
Record the quotient 0 as the next digit in the result. 
Result so far: 200504.0
The remainder is 390 after subtracting 0 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Advancing to step 10:
3900 divided by 400 is 9 with a remainder of 300.
Write down 9 as next digit of the result. 
Result so far: 200504.09
Deduct 3600 from 3900 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Let's proceed to step 11:
When dividing 3000 by 400, we get 7 with a remainder of 200.
Write down 7 as next digit of the result. 
Result so far: 200504.097
Subtract 2800 from 3000 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 12:
400 goes into 2000 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 200504.0975
The remainder is 0 after subtracting 2000 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 13:
The number 400 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 200504.0975
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 14:
400 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 200504.0975
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 200504.0975 with a remaining 0.0.