43012804 ÷ 859 
The aim is to understand the frequency of 859 in 43012804.

Advancing to step 1:
When dividing 4 by 859, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 859

Step 2:
43 divided by 859 is 0 with a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Bring next digit (0) of the dividend behind the 43 and repeat the process: 430 / 859

On to step 3:
The number 859 fits into 430 0 times, leaving a remainder of 430.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 430 and we're left with 430.
Grab the next digit (1) from the dividend, add it to 430, then carry on: 4301 / 859

Step 4:
4301 divided by 859 is 5 with a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 4295 from 4301 to get 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 859

Let's proceed to step 5:
The number 859 fits into 62 0 times, leaving a remainder of 62.
Use 0 as the next digit of our solution. 
Result so far: 50.0
If we take 0 away from 62, we end up with 62.
Include the next digit (8) from the dividend after 62, then repeat: 628 / 859

Moving on to step 6:
859 goes into 628 0 times with a remainder of 628.
Use 0 as the next digit of our solution. 
Result so far: 500.0
If we subtract 0 from 628, we get 628.
Include the next digit (0) from the dividend after 628, then repeat: 6280 / 859

On to step 7:
859 can be fit into 6280 7 times, resulting in a remainder of 267.
The next digit of our result is 7. 
Result so far: 5007.0
If we take 6013 away from 6280, we end up with 267.
Grab the next digit (4) from the dividend, add it to 267, then carry on: 2674 / 859

Going ahead to step 8:
When dividing 2674 by 859, we get 3 with a remainder of 97.
Use 3 as the next digit of our solution. 
Result so far: 50073.0
If we take 2577 away from 2674, we end up with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Let's proceed to step 9:
The number 859 fits into 970 1 times, leaving a remainder of 111.
The number 1 becomes the next digit in our result. 
Result so far: 50073.1
If we subtract 859 from 970, we get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Moving on to step 10:
1110 divided by 859 is 1 with a remainder of 251.
Record the quotient 1 as the next digit in the result. 
Result so far: 50073.11
Subtracting 859 from 1110 leaves us with 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

The quotient of the division is 50073.11, and the remainder is 0.251.