We're dividing 81198700 by 4 
The aim is to understand the frequency of 4 in 81198700.

Let's proceed to step 1:
4 can be fit into 8 2 times, resulting in a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 8 away from 8, we end up with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 4

Advancing to step 2:
The number 4 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 20.0
Subtract 0 from 1 to get 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 4

Step 3:
When dividing 11 by 4, we get 2 with a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 202.0
The remainder is 3 after subtracting 8 from 11.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 4

Step 4:
When dividing 39 by 4, we get 9 with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 2029.0
If we take 36 away from 39, we end up with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 4

Going ahead to step 5:
38 divided by 4 is 9 with a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 20299.0
Deduct 36 from 38 and we're left with 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 4

Let's proceed to step 6:
If we divide 27 by 4, we get 6 and a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 202996.0
The remainder is 3 after subtracting 24 from 27.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 4

Step 7:
The number 4 fits into 30 7 times, leaving a remainder of 2.
The next digit of our result is 7. 
Result so far: 2029967.0
The remainder is 2 after subtracting 28 from 30.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 4

Advancing to step 8:
If we divide 20 by 4, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 20299675.0
If we take 20 away from 20, we end up 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 9:
0 divided by 4 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 20299675.0
If we subtract 0 from 0, we 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.

Let's proceed to step 10:
4 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 20299675.0
If we subtract 0 from 0, we 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 20299675.0 and a remainder of 0.0.