We're dividing 45789010 by 839 
The aim is to understand the frequency of 839 in 45789010.

Let's proceed to step 1:
839 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 839

Advancing to step 2:
When dividing 45 by 839, we get 0 with a remainder of 45.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 45 to get 45.
Take the next digit (7) from the dividend and append it to 45, then repeat: 457 / 839

Going ahead to step 3:
When dividing 457 by 839, we get 0 with a remainder of 457.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 457 to get 457.
Include the next digit (8) from the dividend after 457, then repeat: 4578 / 839

On to step 4:
The number 839 fits into 4578 5 times, leaving a remainder of 383.
The next digit of our result is 5. 
Result so far: 5.0
If we subtract 4195 from 4578, we get 383.
Bring next digit (9) of the dividend behind the 383 and repeat the process: 3839 / 839

On to step 5:
When dividing 3839 by 839, we get 4 with a remainder of 483.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
If we take 3356 away from 3839, we end up with 483.
Take the next digit (0) from the dividend and append it to 483, then repeat: 4830 / 839

Step 6:
4830 divided by 839 is 5 with a remainder of 635.
The number 5 becomes the next digit in our result. 
Result so far: 545.0
The remainder is 635 after subtracting 4195 from 4830.
Fetch the next digit (1) from the dividend, attach it to 635 and continue: 6351 / 839

On to step 7:
The number 839 fits into 6351 7 times, leaving a remainder of 478.
The number 7 becomes the next digit in our result. 
Result so far: 5457.0
If we subtract 5873 from 6351, we get 478.
Append the next digit (0) from the dividend to 478 and continue with: 4780 / 839

On to step 8:
When dividing 4780 by 839, we get 5 with a remainder of 585.
The next digit of our result is 5. 
Result so far: 54575.0
If we subtract 4195 from 4780, we get 585.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5850, and continue the process.

Step 9:
839 goes into 5850 6 times with a remainder of 816.
The number 6 becomes the next digit in our result. 
Result so far: 54575.6
If we subtract 5034 from 5850, we get 816.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8160, and continue the process.

On to step 10:
839 goes into 8160 9 times with a remainder of 609.
Record the quotient 9 as the next digit in the result. 
Result so far: 54575.69
If we take 7551 away from 8160, we end up with 609.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6090, and continue the process.

Advancing to step 11:
839 can be fit into 6090 7 times, resulting in a remainder of 217.
The next digit of our result is 7. 
Result so far: 54575.697
Deduct 5873 from 6090 and we're left with 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

On to step 12:
839 goes into 2170 2 times with a remainder of 492.
The number 2 becomes the next digit in our result. 
Result so far: 54575.6972
Subtract 1678 from 2170 to get 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

Moving on to step 13:
839 goes into 4920 5 times with a remainder of 725.
Record the quotient 5 as the next digit in the result. 
Result so far: 54575.69725
If we subtract 4195 from 4920, we get 725.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7250, and continue the process.

Moving on to step 14:
7250 divided by 839 is 8 with a remainder of 538.
Record the quotient 8 as the next digit in the result. 
Result so far: 54575.697258
The remainder is 538 after subtracting 6712 from 7250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Moving on to step 15:
839 goes into 5380 6 times with a remainder of 346.
The next digit of our result is 6. 
Result so far: 54575.6972586
Deduct 5034 from 5380 and we're left with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Let's proceed to step 16:
839 can be fit into 3460 4 times, resulting in a remainder of 104.
Put 4 as the next digit of the answer. 
Result so far: 54575.69725864
Subtracting 3356 from 3460 leaves us with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

After the division, we end up with 54575.69725864 and a remainder of 1.04e-07.