Let's divide 43949777 by 400
The aim is to understand the frequency of 400 in 43949777.

Step 1:
If we divide 4 by 400, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 400

Advancing to step 2:
400 goes into 43 0 times with a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Include the next digit (9) from the dividend after 43, then repeat: 439 / 400

Let's proceed to step 3:
400 goes into 439 1 times with a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 39 after subtracting 400 from 439.
Fetch the next digit (4) from the dividend, attach it to 39 and continue: 394 / 400

Let's proceed to step 4:
The number 400 fits into 394 0 times, leaving a remainder of 394.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtract 0 from 394 to get 394.
Grab the next digit (9) from the dividend, add it to 394, then carry on: 3949 / 400

Let's proceed to step 5:
If we divide 3949 by 400, we get 9 and a remainder of 349.
Put 9 as the next digit of the answer. 
Result so far: 109.0
Deduct 3600 from 3949 and we're left with 349.
Append the next digit (7) from the dividend to 349 and continue with: 3497 / 400

Moving on to step 6:
400 goes into 3497 8 times with a remainder of 297.
Write down 8 as next digit of the result. 
Result so far: 1098.0
Deduct 3200 from 3497 and we're left with 297.
Grab the next digit (7) from the dividend, add it to 297, then carry on: 2977 / 400

Let's proceed to step 7:
The number 400 fits into 2977 7 times, leaving a remainder of 177.
Put 7 as the next digit of the answer. 
Result so far: 10987.0
The remainder is 177 after subtracting 2800 from 2977.
Bring next digit (7) of the dividend behind the 177 and repeat the process: 1777 / 400

Let's proceed to step 8:
If we divide 1777 by 400, we get 4 and a remainder of 177.
Put 4 as the next digit of the answer. 
Result so far: 109874.0
Deduct 1600 from 1777 and we're left with 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Moving on to step 9:
1770 divided by 400 is 4 with a remainder of 170.
The next digit of our result is 4. 
Result so far: 109874.4
Subtracting 1600 from 1770 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Going ahead to step 10:
If we divide 1700 by 400, we get 4 and a remainder of 100.
Put 4 as the next digit of the answer. 
Result so far: 109874.44
If we subtract 1600 from 1700, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Our division results in 109874.44 with a remaining 0.1.