We're dividing 4227390 by 400 
The aim is to understand the frequency of 400 in 4227390.

Moving on to step 1:
400 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 400

Advancing to step 2:
The number 400 fits into 42 0 times, leaving a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Fetch the next digit (2) from the dividend, attach it to 42 and continue: 422 / 400

Let's proceed to step 3:
422 divided by 400 is 1 with a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 22 after subtracting 400 from 422.
Take the next digit (7) from the dividend and append it to 22, then repeat: 227 / 400

On to step 4:
400 goes into 227 0 times with a remainder of 227.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Deduct 0 from 227 and we're left with 227.
Take the next digit (3) from the dividend and append it to 227, then repeat: 2273 / 400

Let's proceed to step 5:
2273 divided by 400 is 5 with a remainder of 273.
The next digit of our result is 5. 
Result so far: 105.0
Deduct 2000 from 2273 and we're left with 273.
Take the next digit (9) from the dividend and append it to 273, then repeat: 2739 / 400

Advancing to step 6:
If we divide 2739 by 400, we get 6 and a remainder of 339.
Use 6 as the next digit of our solution. 
Result so far: 1056.0
Subtracting 2400 from 2739 leaves us with 339.
Grab the next digit (0) from the dividend, add it to 339, then carry on: 3390 / 400

Step 7:
400 goes into 3390 8 times with a remainder of 190.
Put 8 as the next digit of the answer. 
Result so far: 10568.0
The remainder is 190 after subtracting 3200 from 3390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 8:
400 goes into 1900 4 times with a remainder of 300.
Put 4 as the next digit of the answer. 
Result so far: 10568.4
Deduct 1600 from 1900 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.

Going ahead to step 9:
The number 400 fits into 3000 7 times, leaving a remainder of 200.
Record the quotient 7 as the next digit in the result. 
Result so far: 10568.47
The remainder is 200 after subtracting 2800 from 3000.
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 10:
2000 divided by 400 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 10568.475
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.

Let's proceed to step 11:
400 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10568.475
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:
0 divided by 400 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 10568.475
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.

The final outcome is 10568.475, with a leftover of 0.0.