772102 divided by 45 
The aim is to understand the frequency of 45 in 772102.

Let's proceed to step 1:
If we divide 7 by 45, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 45

Step 2:
45 can be fit into 77 1 times, resulting in a remainder of 32.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 32 after subtracting 45 from 77.
Fetch the next digit (2) from the dividend, attach it to 32 and continue: 322 / 45

Advancing to step 3:
The number 45 fits into 322 7 times, leaving a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 17.0
The remainder is 7 after subtracting 315 from 322.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 45

Step 4:
45 goes into 71 1 times with a remainder of 26.
Record the quotient 1 as the next digit in the result. 
Result so far: 171.0
If we take 45 away from 71, we end up with 26.
Append the next digit (0) from the dividend to 26 and continue with: 260 / 45

Moving on to step 5:
45 goes into 260 5 times with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 1715.0
Subtract 225 from 260 to get 35.
Include the next digit (2) from the dividend after 35, then repeat: 352 / 45

Moving on to step 6:
When dividing 352 by 45, we get 7 with a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 17157.0
Subtracting 315 from 352 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 7:
45 can be fit into 370 8 times, resulting in a remainder of 10.
Write down 8 as next digit of the result. 
Result so far: 17157.8
Deduct 360 from 370 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
45 goes into 100 2 times with a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 17157.82
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
The number 45 fits into 100 2 times, leaving a remainder of 10.
The next digit of our result is 2. 
Result so far: 17157.822
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 17157.822 and a remainder of 0.001.