901138 divided by 86 
The aim is to understand the frequency of 86 in 901138.

Let's proceed to step 1:
When dividing 9 by 86, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 86

Step 2:
86 can be fit into 90 1 times, resulting in a remainder of 4.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 86 from 90 to get 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 86

Moving on to step 3:
The number 86 fits into 41 0 times, leaving a remainder of 41.
Write down 0 as next digit of the result. 
Result so far: 10.0
The remainder is 41 after subtracting 0 from 41.
Bring next digit (1) of the dividend behind the 41 and repeat the process: 411 / 86

On to step 4:
When dividing 411 by 86, we get 4 with a remainder of 67.
The next digit of our result is 4. 
Result so far: 104.0
Subtracting 344 from 411 leaves us with 67.
Take the next digit (3) from the dividend and append it to 67, then repeat: 673 / 86

Advancing to step 5:
86 goes into 673 7 times with a remainder of 71.
The number 7 becomes the next digit in our result. 
Result so far: 1047.0
The remainder is 71 after subtracting 602 from 673.
Bring next digit (8) of the dividend behind the 71 and repeat the process: 718 / 86

Let's proceed to step 6:
718 divided by 86 is 8 with a remainder of 30.
The next digit of our result is 8. 
Result so far: 10478.0
Subtract 688 from 718 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 7:
If we divide 300 by 86, we get 3 and a remainder of 42.
Write down 3 as next digit of the result. 
Result so far: 10478.3
Deduct 258 from 300 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 8:
86 can be fit into 420 4 times, resulting in a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 10478.34
If we subtract 344 from 420, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 9:
86 goes into 760 8 times with a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 10478.348
Subtract 688 from 760 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 10:
If we divide 720 by 86, we get 8 and a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 10478.3488
If we take 688 away from 720, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

In conclusion, the division gives 10478.3488 with a balance of 0.00032.