We look at the division of 28586985 by 710 
The aim is to understand the frequency of 710 in 28586985.

On to step 1:
710 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 710

Going ahead to step 2:
The number 710 fits into 28 0 times, leaving a remainder of 28.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Include the next digit (5) from the dividend after 28, then repeat: 285 / 710

Going ahead to step 3:
710 goes into 285 0 times with a remainder of 285.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 285 after subtracting 0 from 285.
Fetch the next digit (8) from the dividend, attach it to 285 and continue: 2858 / 710

Advancing to step 4:
710 goes into 2858 4 times with a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 2840 from 2858 to get 18.
Append the next digit (6) from the dividend to 18 and continue with: 186 / 710

Going ahead to step 5:
If we divide 186 by 710, we get 0 and a remainder of 186.
Put 0 as the next digit of the answer. 
Result so far: 40.0
Subtract 0 from 186 to get 186.
Grab the next digit (9) from the dividend, add it to 186, then carry on: 1869 / 710

On to step 6:
1869 divided by 710 is 2 with a remainder of 449.
Put 2 as the next digit of the answer. 
Result so far: 402.0
The remainder is 449 after subtracting 1420 from 1869.
Grab the next digit (8) from the dividend, add it to 449, then carry on: 4498 / 710

Moving on to step 7:
710 can be fit into 4498 6 times, resulting in a remainder of 238.
The number 6 becomes the next digit in our result. 
Result so far: 4026.0
Deduct 4260 from 4498 and we're left with 238.
Append the next digit (5) from the dividend to 238 and continue with: 2385 / 710

Going ahead to step 8:
710 can be fit into 2385 3 times, resulting in a remainder of 255.
The next digit of our result is 3. 
Result so far: 40263.0
Subtract 2130 from 2385 to get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Going ahead to step 9:
710 can be fit into 2550 3 times, resulting in a remainder of 420.
Use 3 as the next digit of our solution. 
Result so far: 40263.3
The remainder is 420 after subtracting 2130 from 2550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Going ahead to step 10:
If we divide 4200 by 710, we get 5 and a remainder of 650.
Record the quotient 5 as the next digit in the result. 
Result so far: 40263.35
If we take 3550 away from 4200, we end up with 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Step 11:
710 can be fit into 6500 9 times, resulting in a remainder of 110.
Put 9 as the next digit of the answer. 
Result so far: 40263.359
Subtracting 6390 from 6500 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 12:
If we divide 1100 by 710, we get 1 and a remainder of 390.
Record the quotient 1 as the next digit in the result. 
Result so far: 40263.3591
Subtract 710 from 1100 to get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Let's proceed to step 13:
The number 710 fits into 3900 5 times, leaving a remainder of 350.
Write down 5 as next digit of the result. 
Result so far: 40263.35915
Subtract 3550 from 3900 to get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Let's proceed to step 14:
The number 710 fits into 3500 4 times, leaving a remainder of 660.
The number 4 becomes the next digit in our result. 
Result so far: 40263.359154
The remainder is 660 after subtracting 2840 from 3500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Step 15:
6600 divided by 710 is 9 with a remainder of 210.
Put 9 as the next digit of the answer. 
Result so far: 40263.3591549
Subtract 6390 from 6600 to get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Going ahead to step 16:
710 can be fit into 2100 2 times, resulting in a remainder of 680.
Write down 2 as next digit of the result. 
Result so far: 40263.35915492
The remainder is 680 after subtracting 1420 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

The final result is 40263.35915492 with a remainder of 6.8e-07.