We're dividing 96459138 by 809 
The aim is to understand the frequency of 809 in 96459138.

Going ahead to step 1:
The number 809 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (6) from the dividend, add it to 9, then carry on: 96 / 809

Advancing to step 2:
809 can be fit into 96 0 times, resulting in a remainder of 96.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 96 to get 96.
Include the next digit (4) from the dividend after 96, then repeat: 964 / 809

Step 3:
809 goes into 964 1 times with a remainder of 155.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 809 from 964 and we're left with 155.
Bring next digit (5) of the dividend behind the 155 and repeat the process: 1555 / 809

Step 4:
If we divide 1555 by 809, we get 1 and a remainder of 746.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we take 809 away from 1555, we end up with 746.
Include the next digit (9) from the dividend after 746, then repeat: 7469 / 809

Going ahead to step 5:
The number 809 fits into 7469 9 times, leaving a remainder of 188.
Use 9 as the next digit of our solution. 
Result so far: 119.0
Deduct 7281 from 7469 and we're left with 188.
Append the next digit (1) from the dividend to 188 and continue with: 1881 / 809

Step 6:
809 can be fit into 1881 2 times, resulting in a remainder of 263.
Write down 2 as next digit of the result. 
Result so far: 1192.0
If we take 1618 away from 1881, we end up with 263.
Take the next digit (3) from the dividend and append it to 263, then repeat: 2633 / 809

Moving on to step 7:
809 goes into 2633 3 times with a remainder of 206.
Put 3 as the next digit of the answer. 
Result so far: 11923.0
Subtract 2427 from 2633 to get 206.
Fetch the next digit (8) from the dividend, attach it to 206 and continue: 2068 / 809

Moving on to step 8:
The number 809 fits into 2068 2 times, leaving a remainder of 450.
The number 2 becomes the next digit in our result. 
Result so far: 119232.0
Deduct 1618 from 2068 and we're left with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Let's proceed to step 9:
4500 divided by 809 is 5 with a remainder of 455.
Record the quotient 5 as the next digit in the result. 
Result so far: 119232.5
Subtracting 4045 from 4500 leaves us with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Step 10:
If we divide 4550 by 809, we get 5 and a remainder of 505.
Write down 5 as next digit of the result. 
Result so far: 119232.55
If we take 4045 away from 4550, we end up with 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

The quotient of the division is 119232.55, and the remainder is 0.505.