10459870 divided by 825 
The aim is to understand the frequency of 825 in 10459870.

Let's proceed to step 1:
825 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 825

Going ahead to step 2:
825 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 10 and we're left with 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 825

Going ahead to step 3:
If we divide 104 by 825, we get 0 and a remainder of 104.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 104 to get 104.
Append the next digit (5) from the dividend to 104 and continue with: 1045 / 825

Going ahead to step 4:
825 goes into 1045 1 times with a remainder of 220.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 825 from 1045 to get 220.
Bring next digit (9) of the dividend behind the 220 and repeat the process: 2209 / 825

Let's proceed to step 5:
2209 divided by 825 is 2 with a remainder of 559.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 1650 from 2209 and we're left with 559.
Include the next digit (8) from the dividend after 559, then repeat: 5598 / 825

Advancing to step 6:
If we divide 5598 by 825, we get 6 and a remainder of 648.
Record the quotient 6 as the next digit in the result. 
Result so far: 126.0
The remainder is 648 after subtracting 4950 from 5598.
Bring next digit (7) of the dividend behind the 648 and repeat the process: 6487 / 825

Advancing to step 7:
The number 825 fits into 6487 7 times, leaving a remainder of 712.
Write down 7 as next digit of the result. 
Result so far: 1267.0
The remainder is 712 after subtracting 5775 from 6487.
Include the next digit (0) from the dividend after 712, then repeat: 7120 / 825

Moving on to step 8:
825 goes into 7120 8 times with a remainder of 520.
Use 8 as the next digit of our solution. 
Result so far: 12678.0
Subtract 6600 from 7120 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

On to step 9:
The number 825 fits into 5200 6 times, leaving a remainder of 250.
Use 6 as the next digit of our solution. 
Result so far: 12678.6
Deduct 4950 from 5200 and we're left with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Moving on to step 10:
825 goes into 2500 3 times with a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 12678.63
The remainder is 25 after subtracting 2475 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 11:
The number 825 fits into 250 0 times, leaving a remainder of 250.
The next digit of our result is 0. 
Result so far: 12678.63
If we subtract 0 from 250, we get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 12:
825 can be fit into 2500 3 times, resulting in a remainder of 25.
Use 3 as the next digit of our solution. 
Result so far: 12678.6303
Subtract 2475 from 2500 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 13:
825 can be fit into 250 0 times, resulting in a remainder of 250.
The next digit of our result is 0. 
Result so far: 12678.6303
The remainder is 250 after subtracting 0 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Let's proceed to step 14:
825 can be fit into 2500 3 times, resulting in a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 12678.630303
The remainder is 25 after subtracting 2475 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 15:
250 divided by 825 is 0 with a remainder of 250.
Write down 0 as next digit of the result. 
Result so far: 12678.630303
The remainder is 250 after subtracting 0 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Moving on to step 16:
When dividing 2500 by 825, we get 3 with a remainder of 25.
The number 3 becomes the next digit in our result. 
Result so far: 12678.63030303
Deduct 2475 from 2500 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 12678.63030303 with a remainder of 2.5e-08.