38859751 divided by 591 
The aim is to understand the frequency of 591 in 38859751.

On to step 1:
591 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 591

Advancing to step 2:
The number 591 fits into 38 0 times, leaving a remainder of 38.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 38 and we're left with 38.
Grab the next digit (8) from the dividend, add it to 38, then carry on: 388 / 591

Step 3:
The number 591 fits into 388 0 times, leaving a remainder of 388.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 388 to get 388.
Fetch the next digit (5) from the dividend, attach it to 388 and continue: 3885 / 591

Let's proceed to step 4:
591 can be fit into 3885 6 times, resulting in a remainder of 339.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 3546 away from 3885, we end up with 339.
Take the next digit (9) from the dividend and append it to 339, then repeat: 3399 / 591

Step 5:
When dividing 3399 by 591, we get 5 with a remainder of 444.
The number 5 becomes the next digit in our result. 
Result so far: 65.0
Subtracting 2955 from 3399 leaves us with 444.
Bring next digit (7) of the dividend behind the 444 and repeat the process: 4447 / 591

On to step 6:
The number 591 fits into 4447 7 times, leaving a remainder of 310.
The number 7 becomes the next digit in our result. 
Result so far: 657.0
Deduct 4137 from 4447 and we're left with 310.
Include the next digit (5) from the dividend after 310, then repeat: 3105 / 591

Step 7:
When dividing 3105 by 591, we get 5 with a remainder of 150.
The next digit of our result is 5. 
Result so far: 6575.0
Deduct 2955 from 3105 and we're left with 150.
Grab the next digit (1) from the dividend, add it to 150, then carry on: 1501 / 591

Going ahead to step 8:
591 goes into 1501 2 times with a remainder of 319.
Use 2 as the next digit of our solution. 
Result so far: 65752.0
Subtracting 1182 from 1501 leaves us with 319.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3190, and continue the process.

Going ahead to step 9:
3190 divided by 591 is 5 with a remainder of 235.
Write down 5 as next digit of the result. 
Result so far: 65752.5
If we subtract 2955 from 3190, we get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Let's proceed to step 10:
591 can be fit into 2350 3 times, resulting in a remainder of 577.
Put 3 as the next digit of the answer. 
Result so far: 65752.53
Subtracting 1773 from 2350 leaves us with 577.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5770, and continue the process.

On to step 11:
591 goes into 5770 9 times with a remainder of 451.
Record the quotient 9 as the next digit in the result. 
Result so far: 65752.539
If we subtract 5319 from 5770, we get 451.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4510, and continue the process.

Step 12:
When dividing 4510 by 591, we get 7 with a remainder of 373.
Write down 7 as next digit of the result. 
Result so far: 65752.5397
If we take 4137 away from 4510, we end up with 373.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

Going ahead to step 13:
When dividing 3730 by 591, we get 6 with a remainder of 184.
Put 6 as the next digit of the answer. 
Result so far: 65752.53976
Deduct 3546 from 3730 and we're left with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Going ahead to step 14:
When dividing 1840 by 591, we get 3 with a remainder of 67.
Use 3 as the next digit of our solution. 
Result so far: 65752.539763
The remainder is 67 after subtracting 1773 from 1840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 15:
591 goes into 670 1 times with a remainder of 79.
Use 1 as the next digit of our solution. 
Result so far: 65752.5397631
Subtracting 591 from 670 leaves us with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

On to step 16:
If we divide 790 by 591, we get 1 and a remainder of 199.
Write down 1 as next digit of the result. 
Result so far: 65752.53976311
Deduct 591 from 790 and we're left with 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

The final outcome is 65752.53976311, with a leftover of 1.99e-07.