We're dividing 43619958 by 851 
The aim is to understand the frequency of 851 in 43619958.

Let's proceed to step 1:
851 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 851

Going ahead to step 2:
851 can be fit into 43 0 times, resulting in a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 43 to get 43.
Grab the next digit (6) from the dividend, add it to 43, then carry on: 436 / 851

On to step 3:
The number 851 fits into 436 0 times, leaving a remainder of 436.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 436 leaves us with 436.
Take the next digit (1) from the dividend and append it to 436, then repeat: 4361 / 851

Step 4:
If we divide 4361 by 851, we get 5 and a remainder of 106.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 4255 from 4361 to get 106.
Take the next digit (9) from the dividend and append it to 106, then repeat: 1069 / 851

Advancing to step 5:
If we divide 1069 by 851, we get 1 and a remainder of 218.
Use 1 as the next digit of our solution. 
Result so far: 51.0
Subtracting 851 from 1069 leaves us with 218.
Append the next digit (9) from the dividend to 218 and continue with: 2189 / 851

Moving on to step 6:
The number 851 fits into 2189 2 times, leaving a remainder of 487.
Use 2 as the next digit of our solution. 
Result so far: 512.0
Subtract 1702 from 2189 to get 487.
Grab the next digit (5) from the dividend, add it to 487, then carry on: 4875 / 851

On to step 7:
If we divide 4875 by 851, we get 5 and a remainder of 620.
Record the quotient 5 as the next digit in the result. 
Result so far: 5125.0
If we subtract 4255 from 4875, we get 620.
Grab the next digit (8) from the dividend, add it to 620, then carry on: 6208 / 851

Advancing to step 8:
The number 851 fits into 6208 7 times, leaving a remainder of 251.
Write down 7 as next digit of the result. 
Result so far: 51257.0
The remainder is 251 after subtracting 5957 from 6208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Let's proceed to step 9:
851 goes into 2510 2 times with a remainder of 808.
Put 2 as the next digit of the answer. 
Result so far: 51257.2
Subtract 1702 from 2510 to get 808.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8080, and continue the process.

Moving on to step 10:
If we divide 8080 by 851, we get 9 and a remainder of 421.
Write down 9 as next digit of the result. 
Result so far: 51257.29
Subtract 7659 from 8080 to get 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

On to step 11:
The number 851 fits into 4210 4 times, leaving a remainder of 806.
Record the quotient 4 as the next digit in the result. 
Result so far: 51257.294
If we subtract 3404 from 4210, we get 806.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8060, and continue the process.

Going ahead to step 12:
When dividing 8060 by 851, we get 9 with a remainder of 401.
Use 9 as the next digit of our solution. 
Result so far: 51257.2949
If we take 7659 away from 8060, we end up with 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Going ahead to step 13:
When dividing 4010 by 851, we get 4 with a remainder of 606.
Use 4 as the next digit of our solution. 
Result so far: 51257.29494
Subtract 3404 from 4010 to get 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Moving on to step 14:
6060 divided by 851 is 7 with a remainder of 103.
Write down 7 as next digit of the result. 
Result so far: 51257.294947
If we subtract 5957 from 6060, we 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.

Moving on to step 15:
If we divide 1030 by 851, we get 1 and a remainder of 179.
The next digit of our result is 1. 
Result so far: 51257.2949471
If we take 851 away from 1030, we end up with 179.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Going ahead to step 16:
851 goes into 1790 2 times with a remainder of 88.
The number 2 becomes the next digit in our result. 
Result so far: 51257.29494712
Deduct 1702 from 1790 and we're left with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

In conclusion, the division gives 51257.29494712 with a balance of 8.8e-08.