688341 divided by 45 
The aim is to understand the frequency of 45 in 688341.

Let's proceed to step 1:
If we divide 6 by 45, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 45

On to step 2:
45 goes into 68 1 times with a remainder of 23.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 23 after subtracting 45 from 68.
Bring next digit (8) of the dividend behind the 23 and repeat the process: 238 / 45

On to step 3:
When dividing 238 by 45, we get 5 with a remainder of 13.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we subtract 225 from 238, we get 13.
Take the next digit (3) from the dividend and append it to 13, then repeat: 133 / 45

Step 4:
45 goes into 133 2 times with a remainder of 43.
The number 2 becomes the next digit in our result. 
Result so far: 152.0
Subtract 90 from 133 to get 43.
Take the next digit (4) from the dividend and append it to 43, then repeat: 434 / 45

Step 5:
If we divide 434 by 45, we get 9 and a remainder of 29.
Put 9 as the next digit of the answer. 
Result so far: 1529.0
If we subtract 405 from 434, we get 29.
Take the next digit (1) from the dividend and append it to 29, then repeat: 291 / 45

Moving on to step 6:
When dividing 291 by 45, we get 6 with a remainder of 21.
The next digit of our result is 6. 
Result so far: 15296.0
Subtracting 270 from 291 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 7:
210 divided by 45 is 4 with a remainder of 30.
The number 4 becomes the next digit in our result. 
Result so far: 15296.4
If we subtract 180 from 210, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
The number 45 fits into 300 6 times, leaving a remainder of 30.
Record the quotient 6 as the next digit in the result. 
Result so far: 15296.46
Subtract 270 from 300 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 9:
When dividing 300 by 45, we get 6 with a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 15296.466
The remainder is 30 after subtracting 270 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

In conclusion, the division gives 15296.466 with a balance of 0.003.