We look at the division of 54875626 by 859 
The aim is to understand the frequency of 859 in 54875626.

On to step 1:
859 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 859

Going ahead to step 2:
859 can be fit into 54 0 times, resulting in a remainder of 54.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 54, we get 54.
Grab the next digit (8) from the dividend, add it to 54, then carry on: 548 / 859

Step 3:
The number 859 fits into 548 0 times, leaving a remainder of 548.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 548 after subtracting 0 from 548.
Include the next digit (7) from the dividend after 548, then repeat: 5487 / 859

Moving on to step 4:
859 goes into 5487 6 times with a remainder of 333.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtracting 5154 from 5487 leaves us with 333.
Append the next digit (5) from the dividend to 333 and continue with: 3335 / 859

Let's proceed to step 5:
859 goes into 3335 3 times with a remainder of 758.
Record the quotient 3 as the next digit in the result. 
Result so far: 63.0
If we take 2577 away from 3335, we end up with 758.
Include the next digit (6) from the dividend after 758, then repeat: 7586 / 859

Advancing to step 6:
The number 859 fits into 7586 8 times, leaving a remainder of 714.
The number 8 becomes the next digit in our result. 
Result so far: 638.0
If we subtract 6872 from 7586, we get 714.
Append the next digit (2) from the dividend to 714 and continue with: 7142 / 859

Advancing to step 7:
859 goes into 7142 8 times with a remainder of 270.
Put 8 as the next digit of the answer. 
Result so far: 6388.0
The remainder is 270 after subtracting 6872 from 7142.
Fetch the next digit (6) from the dividend, attach it to 270 and continue: 2706 / 859

Let's proceed to step 8:
859 goes into 2706 3 times with a remainder of 129.
Record the quotient 3 as the next digit in the result. 
Result so far: 63883.0
Subtracting 2577 from 2706 leaves us with 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Moving on to step 9:
If we divide 1290 by 859, we get 1 and a remainder of 431.
The number 1 becomes the next digit in our result. 
Result so far: 63883.1
The remainder is 431 after subtracting 859 from 1290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4310, and continue the process.

On to step 10:
The number 859 fits into 4310 5 times, leaving a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 63883.15
Subtracting 4295 from 4310 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 11:
If we divide 150 by 859, we get 0 and a remainder of 150.
Use 0 as the next digit of our solution. 
Result so far: 63883.15
The remainder is 150 after subtracting 0 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 12:
When dividing 1500 by 859, we get 1 with a remainder of 641.
Write down 1 as next digit of the result. 
Result so far: 63883.1501
Deduct 859 from 1500 and we're left with 641.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6410, and continue the process.

Going ahead to step 13:
When dividing 6410 by 859, we get 7 with a remainder of 397.
Write down 7 as next digit of the result. 
Result so far: 63883.15017
Subtracting 6013 from 6410 leaves us with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Moving on to step 14:
If we divide 3970 by 859, we get 4 and a remainder of 534.
The next digit of our result is 4. 
Result so far: 63883.150174
Subtracting 3436 from 3970 leaves us with 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Let's proceed to step 15:
5340 divided by 859 is 6 with a remainder of 186.
Use 6 as the next digit of our solution. 
Result so far: 63883.1501746
Deduct 5154 from 5340 and we're left with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Step 16:
If we divide 1860 by 859, we get 2 and a remainder of 142.
Put 2 as the next digit of the answer. 
Result so far: 63883.15017462
If we subtract 1718 from 1860, we get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

The final outcome is 63883.15017462, with a leftover of 1.42e-07.