We're dividing 1245834 by 800 
The aim is to understand the frequency of 800 in 1245834.

Moving on to step 1:
800 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 800

Advancing to step 2:
800 can be fit into 12 0 times, resulting in a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Append the next digit (4) from the dividend to 12 and continue with: 124 / 800

Moving on to step 3:
If we divide 124 by 800, we get 0 and a remainder of 124.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 124 after subtracting 0 from 124.
Bring next digit (5) of the dividend behind the 124 and repeat the process: 1245 / 800

Step 4:
If we divide 1245 by 800, we get 1 and a remainder of 445.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 800 away from 1245, we end up with 445.
Bring next digit (8) of the dividend behind the 445 and repeat the process: 4458 / 800

Let's proceed to step 5:
4458 divided by 800 is 5 with a remainder of 458.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we subtract 4000 from 4458, we get 458.
Bring next digit (3) of the dividend behind the 458 and repeat the process: 4583 / 800

Let's proceed to step 6:
4583 divided by 800 is 5 with a remainder of 583.
Write down 5 as next digit of the result. 
Result so far: 155.0
Subtracting 4000 from 4583 leaves us with 583.
Append the next digit (4) from the dividend to 583 and continue with: 5834 / 800

On to step 7:
The number 800 fits into 5834 7 times, leaving a remainder of 234.
Write down 7 as next digit of the result. 
Result so far: 1557.0
The remainder is 234 after subtracting 5600 from 5834.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Step 8:
The number 800 fits into 2340 2 times, leaving a remainder of 740.
The number 2 becomes the next digit in our result. 
Result so far: 1557.2
Deduct 1600 from 2340 and we're left with 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

Let's proceed to step 9:
7400 divided by 800 is 9 with a remainder of 200.
Use 9 as the next digit of our solution. 
Result so far: 1557.29
Subtract 7200 from 7400 to 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.

On to step 10:
2000 divided by 800 is 2 with a remainder of 400.
Record the quotient 2 as the next digit in the result. 
Result so far: 1557.292
Deduct 1600 from 2000 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 11:
When dividing 4000 by 800, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 1557.2925
Subtract 4000 from 4000 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.

Let's proceed to step 12:
The number 800 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 1557.2925
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.

Moving on to step 13:
800 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1557.2925
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.

The final result is 1557.2925 with a remainder of 0.0.