We look at the division of 88186042 by 400 
The aim is to understand the frequency of 400 in 88186042.

On to step 1:
8 divided by 400 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 400

Going ahead to step 2:
The number 400 fits into 88 0 times, leaving a remainder of 88.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 88 and we're left with 88.
Grab the next digit (1) from the dividend, add it to 88, then carry on: 881 / 400

Moving on to step 3:
When dividing 881 by 400, we get 2 with a remainder of 81.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 800 away from 881, we end up with 81.
Grab the next digit (8) from the dividend, add it to 81, then carry on: 818 / 400

On to step 4:
When dividing 818 by 400, we get 2 with a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
The remainder is 18 after subtracting 800 from 818.
Append the next digit (6) from the dividend to 18 and continue with: 186 / 400

Step 5:
If we divide 186 by 400, we get 0 and a remainder of 186.
The next digit of our result is 0. 
Result so far: 220.0
If we take 0 away from 186, we end up with 186.
Fetch the next digit (0) from the dividend, attach it to 186 and continue: 1860 / 400

Step 6:
When dividing 1860 by 400, we get 4 with a remainder of 260.
Record the quotient 4 as the next digit in the result. 
Result so far: 2204.0
If we take 1600 away from 1860, we end up with 260.
Append the next digit (4) from the dividend to 260 and continue with: 2604 / 400

Let's proceed to step 7:
If we divide 2604 by 400, we get 6 and a remainder of 204.
Use 6 as the next digit of our solution. 
Result so far: 22046.0
Deduct 2400 from 2604 and we're left with 204.
Take the next digit (2) from the dividend and append it to 204, then repeat: 2042 / 400

Step 8:
400 can be fit into 2042 5 times, resulting in a remainder of 42.
Use 5 as the next digit of our solution. 
Result so far: 220465.0
Subtract 2000 from 2042 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 9:
400 can be fit into 420 1 times, resulting in a remainder of 20.
The next digit of our result is 1. 
Result so far: 220465.1
Deduct 400 from 420 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 10:
When dividing 200 by 400, we get 0 with a remainder of 200.
The next digit of our result is 0. 
Result so far: 220465.1
If we subtract 0 from 200, 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.

Moving on to step 11:
The number 400 fits into 2000 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 220465.105
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.

Step 12:
400 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 220465.105
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.

Let's proceed to step 13:
400 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 220465.105
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.

The final result is 220465.105 with a remainder of 0.0.