86435876 divided by 837 
The aim is to understand the frequency of 837 in 86435876.

Let's proceed to step 1:
837 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 837

Moving on to step 2:
86 divided by 837 is 0 with a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 86 and we're left with 86.
Take the next digit (4) from the dividend and append it to 86, then repeat: 864 / 837

Going ahead to step 3:
864 divided by 837 is 1 with a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 837 from 864, we get 27.
Fetch the next digit (3) from the dividend, attach it to 27 and continue: 273 / 837

On to step 4:
If we divide 273 by 837, we get 0 and a remainder of 273.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we subtract 0 from 273, we get 273.
Fetch the next digit (5) from the dividend, attach it to 273 and continue: 2735 / 837

On to step 5:
If we divide 2735 by 837, we get 3 and a remainder of 224.
Use 3 as the next digit of our solution. 
Result so far: 103.0
Subtract 2511 from 2735 to get 224.
Bring next digit (8) of the dividend behind the 224 and repeat the process: 2248 / 837

Let's proceed to step 6:
The number 837 fits into 2248 2 times, leaving a remainder of 574.
Put 2 as the next digit of the answer. 
Result so far: 1032.0
Subtracting 1674 from 2248 leaves us with 574.
Bring next digit (7) of the dividend behind the 574 and repeat the process: 5747 / 837

On to step 7:
5747 divided by 837 is 6 with a remainder of 725.
Use 6 as the next digit of our solution. 
Result so far: 10326.0
The remainder is 725 after subtracting 5022 from 5747.
Bring next digit (6) of the dividend behind the 725 and repeat the process: 7256 / 837

Moving on to step 8:
The number 837 fits into 7256 8 times, leaving a remainder of 560.
Use 8 as the next digit of our solution. 
Result so far: 103268.0
If we take 6696 away from 7256, we end up with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 9:
837 goes into 5600 6 times with a remainder of 578.
Use 6 as the next digit of our solution. 
Result so far: 103268.6
If we subtract 5022 from 5600, we get 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

On to step 10:
5780 divided by 837 is 6 with a remainder of 758.
Record the quotient 6 as the next digit in the result. 
Result so far: 103268.66
The remainder is 758 after subtracting 5022 from 5780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7580, and continue the process.

After the division, we end up with 103268.66 and a remainder of 0.758.