We look at the division of 90493160 by 400 
The aim is to understand the frequency of 400 in 90493160.

Going ahead to step 1:
400 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 400

Going ahead to step 2:
The number 400 fits into 90 0 times, leaving a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 90, we end up with 90.
Bring next digit (4) of the dividend behind the 90 and repeat the process: 904 / 400

On to step 3:
904 divided by 400 is 2 with a remainder of 104.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 800 from 904 and we're left with 104.
Fetch the next digit (9) from the dividend, attach it to 104 and continue: 1049 / 400

Moving on to step 4:
1049 divided by 400 is 2 with a remainder of 249.
The next digit of our result is 2. 
Result so far: 22.0
Subtract 800 from 1049 to get 249.
Grab the next digit (3) from the dividend, add it to 249, then carry on: 2493 / 400

Step 5:
The number 400 fits into 2493 6 times, leaving a remainder of 93.
The number 6 becomes the next digit in our result. 
Result so far: 226.0
If we subtract 2400 from 2493, we get 93.
Include the next digit (1) from the dividend after 93, then repeat: 931 / 400

Moving on to step 6:
If we divide 931 by 400, we get 2 and a remainder of 131.
The number 2 becomes the next digit in our result. 
Result so far: 2262.0
Subtract 800 from 931 to get 131.
Take the next digit (6) from the dividend and append it to 131, then repeat: 1316 / 400

Moving on to step 7:
If we divide 1316 by 400, we get 3 and a remainder of 116.
Write down 3 as next digit of the result. 
Result so far: 22623.0
The remainder is 116 after subtracting 1200 from 1316.
Include the next digit (0) from the dividend after 116, then repeat: 1160 / 400

Going ahead to step 8:
1160 divided by 400 is 2 with a remainder of 360.
Record the quotient 2 as the next digit in the result. 
Result so far: 226232.0
If we take 800 away from 1160, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 9:
3600 divided by 400 is 9 with a remainder of 0.
The next digit of our result is 9. 
Result so far: 226232.9
Subtracting 3600 from 3600 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.

Moving on to step 10:
400 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 226232.9
Deduct 0 from 0 and we're left 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.

On to step 11:
400 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 226232.9
Subtract 0 from 0 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.

After the division, we end up with 226232.9 and a remainder of 0.0.