We look at the division of 50438006 by 859 
The aim is to understand the frequency of 859 in 50438006.

On to step 1:
The number 859 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (0) from the dividend to 5 and continue with: 50 / 859

On to step 2:
50 divided by 859 is 0 with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 50, we get 50.
Bring next digit (4) of the dividend behind the 50 and repeat the process: 504 / 859

Let's proceed to step 3:
When dividing 504 by 859, we get 0 with a remainder of 504.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 504 after subtracting 0 from 504.
Include the next digit (3) from the dividend after 504, then repeat: 5043 / 859

On to step 4:
If we divide 5043 by 859, we get 5 and a remainder of 748.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 748 after subtracting 4295 from 5043.
Include the next digit (8) from the dividend after 748, then repeat: 7488 / 859

Going ahead to step 5:
The number 859 fits into 7488 8 times, leaving a remainder of 616.
The next digit of our result is 8. 
Result so far: 58.0
If we take 6872 away from 7488, we end up with 616.
Include the next digit (0) from the dividend after 616, then repeat: 6160 / 859

Step 6:
If we divide 6160 by 859, we get 7 and a remainder of 147.
Put 7 as the next digit of the answer. 
Result so far: 587.0
If we subtract 6013 from 6160, we get 147.
Grab the next digit (0) from the dividend, add it to 147, then carry on: 1470 / 859

Going ahead to step 7:
859 can be fit into 1470 1 times, resulting in a remainder of 611.
Write down 1 as next digit of the result. 
Result so far: 5871.0
If we subtract 859 from 1470, we get 611.
Take the next digit (6) from the dividend and append it to 611, then repeat: 6116 / 859

Let's proceed to step 8:
6116 divided by 859 is 7 with a remainder of 103.
Write down 7 as next digit of the result. 
Result so far: 58717.0
Subtract 6013 from 6116 to get 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Let's proceed to step 9:
When dividing 1030 by 859, we get 1 with a remainder of 171.
Use 1 as the next digit of our solution. 
Result so far: 58717.1
If we take 859 away from 1030, we end up with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Let's proceed to step 10:
859 goes into 1710 1 times with a remainder of 851.
Record the quotient 1 as the next digit in the result. 
Result so far: 58717.11
If we take 859 away from 1710, we end up with 851.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8510, and continue the process.

Our division results in 58717.11 with a remaining 0.851.