We look at the division of 45791914 by 389 
The aim is to understand the frequency of 389 in 45791914.

Advancing to step 1:
When dividing 4 by 389, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 389

Going ahead to step 2:
The number 389 fits into 45 0 times, leaving a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 45, we get 45.
Include the next digit (7) from the dividend after 45, then repeat: 457 / 389

On to step 3:
389 can be fit into 457 1 times, resulting in a remainder of 68.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 389 from 457 leaves us with 68.
Fetch the next digit (9) from the dividend, attach it to 68 and continue: 689 / 389

Let's proceed to step 4:
The number 389 fits into 689 1 times, leaving a remainder of 300.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 389 away from 689, we end up with 300.
Append the next digit (1) from the dividend to 300 and continue with: 3001 / 389

Moving on to step 5:
3001 divided by 389 is 7 with a remainder of 278.
Write down 7 as next digit of the result. 
Result so far: 117.0
Subtract 2723 from 3001 to get 278.
Append the next digit (9) from the dividend to 278 and continue with: 2789 / 389

Step 6:
The number 389 fits into 2789 7 times, leaving a remainder of 66.
Write down 7 as next digit of the result. 
Result so far: 1177.0
Subtracting 2723 from 2789 leaves us with 66.
Append the next digit (1) from the dividend to 66 and continue with: 661 / 389

Advancing to step 7:
661 divided by 389 is 1 with a remainder of 272.
The number 1 becomes the next digit in our result. 
Result so far: 11771.0
Subtracting 389 from 661 leaves us with 272.
Bring next digit (4) of the dividend behind the 272 and repeat the process: 2724 / 389

Going ahead to step 8:
2724 divided by 389 is 7 with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 117717.0
The remainder is 1 after subtracting 2723 from 2724.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 9:
10 divided by 389 is 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 117717.0
Subtract 0 from 10 to 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.

On to step 10:
389 goes into 100 0 times with a remainder of 100.
The next digit of our result is 0. 
Result so far: 117717.0
Subtracting 0 from 100 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

After the division, we end up with 117717.0 and a remainder of 0.1.