45401617 ÷ 789 
The aim is to understand the frequency of 789 in 45401617.

Let's proceed to step 1:
When dividing 4 by 789, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 789

Moving on to step 2:
789 can be fit into 45 0 times, resulting in a remainder of 45.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 45, we get 45.
Grab the next digit (4) from the dividend, add it to 45, then carry on: 454 / 789

Moving on to step 3:
789 can be fit into 454 0 times, resulting in a remainder of 454.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 454, we get 454.
Include the next digit (0) from the dividend after 454, then repeat: 4540 / 789

Step 4:
4540 divided by 789 is 5 with a remainder of 595.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we take 3945 away from 4540, we end up with 595.
Include the next digit (1) from the dividend after 595, then repeat: 5951 / 789

Advancing to step 5:
789 goes into 5951 7 times with a remainder of 428.
Use 7 as the next digit of our solution. 
Result so far: 57.0
If we take 5523 away from 5951, we end up with 428.
Grab the next digit (6) from the dividend, add it to 428, then carry on: 4286 / 789

Advancing to step 6:
789 can be fit into 4286 5 times, resulting in a remainder of 341.
The next digit of our result is 5. 
Result so far: 575.0
The remainder is 341 after subtracting 3945 from 4286.
Append the next digit (1) from the dividend to 341 and continue with: 3411 / 789

Going ahead to step 7:
789 goes into 3411 4 times with a remainder of 255.
Record the quotient 4 as the next digit in the result. 
Result so far: 5754.0
Subtract 3156 from 3411 to get 255.
Include the next digit (7) from the dividend after 255, then repeat: 2557 / 789

On to step 8:
789 goes into 2557 3 times with a remainder of 190.
Put 3 as the next digit of the answer. 
Result so far: 57543.0
Subtracting 2367 from 2557 leaves us with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Going ahead to step 9:
The number 789 fits into 1900 2 times, leaving a remainder of 322.
Use 2 as the next digit of our solution. 
Result so far: 57543.2
If we take 1578 away from 1900, we end up with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Advancing to step 10:
789 can be fit into 3220 4 times, resulting in a remainder of 64.
Write down 4 as next digit of the result. 
Result so far: 57543.24
The remainder is 64 after subtracting 3156 from 3220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 11:
The number 789 fits into 640 0 times, leaving a remainder of 640.
Use 0 as the next digit of our solution. 
Result so far: 57543.24
If we subtract 0 from 640, we get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Advancing to step 12:
789 goes into 6400 8 times with a remainder of 88.
The number 8 becomes the next digit in our result. 
Result so far: 57543.2408
Subtract 6312 from 6400 to get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Step 13:
789 can be fit into 880 1 times, resulting in a remainder of 91.
Record the quotient 1 as the next digit in the result. 
Result so far: 57543.24081
Subtract 789 from 880 to get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Let's proceed to step 14:
910 divided by 789 is 1 with a remainder of 121.
Record the quotient 1 as the next digit in the result. 
Result so far: 57543.240811
Subtract 789 from 910 to get 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Our division results in 57543.240811 with a remaining 1.21e-05.