836719 ÷ 45 
The aim is to understand the frequency of 45 in 836719.

Going ahead to step 1:
45 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 45

Advancing to step 2:
83 divided by 45 is 1 with a remainder of 38.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 45 away from 83, we end up with 38.
Take the next digit (6) from the dividend and append it to 38, then repeat: 386 / 45

Advancing to step 3:
The number 45 fits into 386 8 times, leaving a remainder of 26.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
If we subtract 360 from 386, we get 26.
Include the next digit (7) from the dividend after 26, then repeat: 267 / 45

Advancing to step 4:
45 can be fit into 267 5 times, resulting in a remainder of 42.
Use 5 as the next digit of our solution. 
Result so far: 185.0
Subtract 225 from 267 to get 42.
Grab the next digit (1) from the dividend, add it to 42, then carry on: 421 / 45

Step 5:
When dividing 421 by 45, we get 9 with a remainder of 16.
The next digit of our result is 9. 
Result so far: 1859.0
The remainder is 16 after subtracting 405 from 421.
Grab the next digit (9) from the dividend, add it to 16, then carry on: 169 / 45

Advancing to step 6:
45 goes into 169 3 times with a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 18593.0
Deduct 135 from 169 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 7:
The number 45 fits into 340 7 times, leaving a remainder of 25.
Put 7 as the next digit of the answer. 
Result so far: 18593.7
If we subtract 315 from 340, we 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.

Advancing to step 8:
When dividing 250 by 45, we get 5 with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 18593.75
If we subtract 225 from 250, we 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 9:
If we divide 250 by 45, we get 5 and a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 18593.755
Deduct 225 from 250 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.

After the division, we end up with 18593.755 and a remainder of 0.0025.