We look at the division of 64768170 by 45 
The aim is to understand the frequency of 45 in 64768170.

Moving on to step 1:
The number 45 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 45

Let's proceed to step 2:
64 divided by 45 is 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 45 from 64 to get 19.
Grab the next digit (7) from the dividend, add it to 19, then carry on: 197 / 45

Let's proceed to step 3:
45 can be fit into 197 4 times, resulting in a remainder of 17.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtract 180 from 197 to get 17.
Append the next digit (6) from the dividend to 17 and continue with: 176 / 45

Going ahead to step 4:
If we divide 176 by 45, we get 3 and a remainder of 41.
Put 3 as the next digit of the answer. 
Result so far: 143.0
If we take 135 away from 176, we end up with 41.
Fetch the next digit (8) from the dividend, attach it to 41 and continue: 418 / 45

Going ahead to step 5:
418 divided by 45 is 9 with a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 1439.0
Deduct 405 from 418 and we're left with 13.
Include the next digit (1) from the dividend after 13, then repeat: 131 / 45

Moving on to step 6:
131 divided by 45 is 2 with a remainder of 41.
Record the quotient 2 as the next digit in the result. 
Result so far: 14392.0
Deduct 90 from 131 and we're left with 41.
Fetch the next digit (7) from the dividend, attach it to 41 and continue: 417 / 45

Moving on to step 7:
45 goes into 417 9 times with a remainder of 12.
Use 9 as the next digit of our solution. 
Result so far: 143929.0
Deduct 405 from 417 and we're left with 12.
Take the next digit (0) from the dividend and append it to 12, then repeat: 120 / 45

Step 8:
120 divided by 45 is 2 with a remainder of 30.
The next digit of our result is 2. 
Result so far: 1439292.0
If we take 90 away from 120, we end up 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 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: 1439292.6
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.

Moving on to step 10:
If we divide 300 by 45, we get 6 and a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 1439292.66
If we take 270 away from 300, we end up 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.

The final result is 1439292.66 with a remainder of 0.03.