We divide 869637 by 45
The aim is to understand the frequency of 45 in 869637.

Let's proceed to step 1:
The number 45 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 45

On to step 2:
45 can be fit into 86 1 times, resulting in a remainder of 41.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 45 from 86 and we're left with 41.
Take the next digit (9) from the dividend and append it to 41, then repeat: 419 / 45

On to step 3:
If we divide 419 by 45, we get 9 and a remainder of 14.
Write down 9 as next digit of the result. 
Result so far: 19.0
If we subtract 405 from 419, we get 14.
Take the next digit (6) from the dividend and append it to 14, then repeat: 146 / 45

Advancing to step 4:
45 goes into 146 3 times with a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 193.0
Subtract 135 from 146 to get 11.
Bring next digit (3) of the dividend behind the 11 and repeat the process: 113 / 45

Step 5:
45 can be fit into 113 2 times, resulting in a remainder of 23.
Use 2 as the next digit of our solution. 
Result so far: 1932.0
The remainder is 23 after subtracting 90 from 113.
Include the next digit (7) from the dividend after 23, then repeat: 237 / 45

Let's proceed to step 6:
When dividing 237 by 45, we get 5 with a remainder of 12.
Write down 5 as next digit of the result. 
Result so far: 19325.0
Subtract 225 from 237 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 7:
The number 45 fits into 120 2 times, leaving a remainder of 30.
Write down 2 as next digit of the result. 
Result so far: 19325.2
Subtracting 90 from 120 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
300 divided by 45 is 6 with a remainder of 30.
The number 6 becomes the next digit in our result. 
Result so far: 19325.26
Deduct 270 from 300 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 9:
The number 45 fits into 300 6 times, leaving a remainder of 30.
The number 6 becomes the next digit in our result. 
Result so far: 19325.266
Subtracting 270 from 300 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 19325.266 and a remainder of 0.003.