We look at the division of 857870 by 97 
The aim is to understand the frequency of 97 in 857870.

Moving on to step 1:
If we divide 8 by 97, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 97

Let's proceed to step 2:
97 can be fit into 85 0 times, resulting in a remainder of 85.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 85, we end up with 85.
Include the next digit (7) from the dividend after 85, then repeat: 857 / 97

Let's proceed to step 3:
97 can be fit into 857 8 times, resulting in a remainder of 81.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 776 from 857 to get 81.
Bring next digit (8) of the dividend behind the 81 and repeat the process: 818 / 97

On to step 4:
The number 97 fits into 818 8 times, leaving a remainder of 42.
The next digit of our result is 8. 
Result so far: 88.0
Deduct 776 from 818 and we're left with 42.
Take the next digit (7) from the dividend and append it to 42, then repeat: 427 / 97

Let's proceed to step 5:
When dividing 427 by 97, we get 4 with a remainder of 39.
Put 4 as the next digit of the answer. 
Result so far: 884.0
If we take 388 away from 427, we end up with 39.
Take the next digit (0) from the dividend and append it to 39, then repeat: 390 / 97

Advancing to step 6:
97 goes into 390 4 times with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 8844.0
Subtract 388 from 390 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
When dividing 20 by 97, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 8844.0
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 8:
When dividing 200 by 97, we get 2 with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 8844.02
Deduct 194 from 200 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 9:
When dividing 60 by 97, we get 0 with a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 8844.02
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 10:
The number 97 fits into 600 6 times, leaving a remainder of 18.
Put 6 as the next digit of the answer. 
Result so far: 8844.0206
If we take 582 away from 600, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 11:
If we divide 180 by 97, we get 1 and a remainder of 83.
Put 1 as the next digit of the answer. 
Result so far: 8844.02061
Deduct 97 from 180 and we're left with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Advancing to step 12:
When dividing 830 by 97, we get 8 with a remainder of 54.
The next digit of our result is 8. 
Result so far: 8844.020618
If we subtract 776 from 830, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 13:
When dividing 540 by 97, we get 5 with a remainder of 55.
The next digit of our result is 5. 
Result so far: 8844.0206185
If we subtract 485 from 540, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 14:
If we divide 550 by 97, we get 5 and a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 8844.02061855
The remainder is 65 after subtracting 485 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

After the division, we end up with 8844.02061855 and a remainder of 6.5e-08.