52143218 divided by 400 
The aim is to understand the frequency of 400 in 52143218.

Moving on to step 1:
5 divided by 400 is 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 400

On to step 2:
The number 400 fits into 52 0 times, leaving a remainder of 52.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 52 leaves us with 52.
Take the next digit (1) from the dividend and append it to 52, then repeat: 521 / 400

Advancing to step 3:
When dividing 521 by 400, we get 1 with a remainder of 121.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 400 from 521 leaves us with 121.
Include the next digit (4) from the dividend after 121, then repeat: 1214 / 400

Going ahead to step 4:
1214 divided by 400 is 3 with a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we take 1200 away from 1214, we end up with 14.
Append the next digit (3) from the dividend to 14 and continue with: 143 / 400

Going ahead to step 5:
When dividing 143 by 400, we get 0 with a remainder of 143.
The number 0 becomes the next digit in our result. 
Result so far: 130.0
If we subtract 0 from 143, we get 143.
Take the next digit (2) from the dividend and append it to 143, then repeat: 1432 / 400

On to step 6:
If we divide 1432 by 400, we get 3 and a remainder of 232.
Write down 3 as next digit of the result. 
Result so far: 1303.0
Subtract 1200 from 1432 to get 232.
Take the next digit (1) from the dividend and append it to 232, then repeat: 2321 / 400

Going ahead to step 7:
400 can be fit into 2321 5 times, resulting in a remainder of 321.
Write down 5 as next digit of the result. 
Result so far: 13035.0
Subtracting 2000 from 2321 leaves us with 321.
Grab the next digit (8) from the dividend, add it to 321, then carry on: 3218 / 400

Step 8:
400 can be fit into 3218 8 times, resulting in a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 130358.0
Subtracting 3200 from 3218 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 9:
400 can be fit into 180 0 times, resulting in a remainder of 180.
Write down 0 as next digit of the result. 
Result so far: 130358.0
Subtract 0 from 180 to get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Let's proceed to step 10:
The number 400 fits into 1800 4 times, leaving a remainder of 200.
Use 4 as the next digit of our solution. 
Result so far: 130358.04
Subtract 1600 from 1800 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.

Moving on to step 11:
400 goes into 2000 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 130358.045
Subtract 2000 from 2000 to get 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 12:
When dividing 0 by 400, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 130358.045
Subtracting 0 from 0 leaves us 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 13:
The number 400 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 130358.045
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.

The final result is 130358.045 with a remainder of 0.0.