33613900 divided by 400 
The aim is to understand the frequency of 400 in 33613900.

Moving on to step 1:
When dividing 3 by 400, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 400

Let's proceed to step 2:
If we divide 33 by 400, we get 0 and a remainder of 33.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 33, we end up with 33.
Grab the next digit (6) from the dividend, add it to 33, then carry on: 336 / 400

Step 3:
The number 400 fits into 336 0 times, leaving a remainder of 336.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 336 after subtracting 0 from 336.
Grab the next digit (1) from the dividend, add it to 336, then carry on: 3361 / 400

On to step 4:
The number 400 fits into 3361 8 times, leaving a remainder of 161.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 3200 away from 3361, we end up with 161.
Bring next digit (3) of the dividend behind the 161 and repeat the process: 1613 / 400

On to step 5:
1613 divided by 400 is 4 with a remainder of 13.
Write down 4 as next digit of the result. 
Result so far: 84.0
The remainder is 13 after subtracting 1600 from 1613.
Append the next digit (9) from the dividend to 13 and continue with: 139 / 400

On to step 6:
139 divided by 400 is 0 with a remainder of 139.
The number 0 becomes the next digit in our result. 
Result so far: 840.0
If we take 0 away from 139, we end up with 139.
Grab the next digit (0) from the dividend, add it to 139, then carry on: 1390 / 400

Step 7:
The number 400 fits into 1390 3 times, leaving a remainder of 190.
The next digit of our result is 3. 
Result so far: 8403.0
If we take 1200 away from 1390, we end up with 190.
Take the next digit (0) from the dividend and append it to 190, then repeat: 1900 / 400

On to step 8:
1900 divided by 400 is 4 with a remainder of 300.
Put 4 as the next digit of the answer. 
Result so far: 84034.0
Subtract 1600 from 1900 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 9:
If we divide 3000 by 400, we get 7 and a remainder of 200.
The number 7 becomes the next digit in our result. 
Result so far: 84034.7
If we subtract 2800 from 3000, we 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 10:
If we divide 2000 by 400, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 84034.75
If we take 2000 away from 2000, 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.

Going ahead to step 11:
400 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 84034.75
The remainder is 0 after subtracting 0 from 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 12:
400 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 84034.75
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 84034.75 with a remaining 0.0.