We're dividing 87638907 by 224 
The aim is to understand the frequency of 224 in 87638907.

Let's proceed to step 1:
224 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 224

Let's proceed to step 2:
224 can be fit into 87 0 times, resulting in a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 87, we get 87.
Fetch the next digit (6) from the dividend, attach it to 87 and continue: 876 / 224

Moving on to step 3:
224 can be fit into 876 3 times, resulting in a remainder of 204.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 672 from 876, we get 204.
Grab the next digit (3) from the dividend, add it to 204, then carry on: 2043 / 224

Step 4:
The number 224 fits into 2043 9 times, leaving a remainder of 27.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
If we subtract 2016 from 2043, we get 27.
Take the next digit (8) from the dividend and append it to 27, then repeat: 278 / 224

Going ahead to step 5:
278 divided by 224 is 1 with a remainder of 54.
Record the quotient 1 as the next digit in the result. 
Result so far: 391.0
Deduct 224 from 278 and we're left with 54.
Grab the next digit (9) from the dividend, add it to 54, then carry on: 549 / 224

On to step 6:
When dividing 549 by 224, we get 2 with a remainder of 101.
Write down 2 as next digit of the result. 
Result so far: 3912.0
If we subtract 448 from 549, we get 101.
Include the next digit (0) from the dividend after 101, then repeat: 1010 / 224

On to step 7:
224 goes into 1010 4 times with a remainder of 114.
Use 4 as the next digit of our solution. 
Result so far: 39124.0
If we subtract 896 from 1010, we get 114.
Bring next digit (7) of the dividend behind the 114 and repeat the process: 1147 / 224

Moving on to step 8:
If we divide 1147 by 224, we get 5 and a remainder of 27.
Record the quotient 5 as the next digit in the result. 
Result so far: 391245.0
If we subtract 1120 from 1147, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 9:
224 can be fit into 270 1 times, resulting in a remainder of 46.
Put 1 as the next digit of the answer. 
Result so far: 391245.1
Deduct 224 from 270 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 10:
460 divided by 224 is 2 with a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 391245.12
Deduct 448 from 460 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 11:
224 can be fit into 120 0 times, resulting in a remainder of 120.
Use 0 as the next digit of our solution. 
Result so far: 391245.12
If we take 0 away from 120, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 12:
If we divide 1200 by 224, we get 5 and a remainder of 80.
Write down 5 as next digit of the result. 
Result so far: 391245.1205
The remainder is 80 after subtracting 1120 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 13:
224 can be fit into 800 3 times, resulting in a remainder of 128.
Use 3 as the next digit of our solution. 
Result so far: 391245.12053
If we subtract 672 from 800, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Let's proceed to step 14:
224 goes into 1280 5 times with a remainder of 160.
The next digit of our result is 5. 
Result so far: 391245.120535
Subtract 1120 from 1280 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 15:
224 can be fit into 1600 7 times, resulting in a remainder of 32.
Write down 7 as next digit of the result. 
Result so far: 391245.1205357
Deduct 1568 from 1600 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 16:
224 goes into 320 1 times with a remainder of 96.
Write down 1 as next digit of the result. 
Result so far: 391245.12053571
Deduct 224 from 320 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

After the division, we end up with 391245.12053571 and a remainder of 9.6e-08.