We're dividing 3641380 by 591 
The aim is to understand the frequency of 591 in 3641380.

Step 1:
If we divide 3 by 591, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 591

Moving on to step 2:
If we divide 36 by 591, we get 0 and a remainder of 36.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 36 to get 36.
Bring next digit (4) of the dividend behind the 36 and repeat the process: 364 / 591

Step 3:
If we divide 364 by 591, we get 0 and a remainder of 364.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 364 leaves us with 364.
Include the next digit (1) from the dividend after 364, then repeat: 3641 / 591

On to step 4:
The number 591 fits into 3641 6 times, leaving a remainder of 95.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 3546 from 3641 leaves us with 95.
Take the next digit (3) from the dividend and append it to 95, then repeat: 953 / 591

On to step 5:
When dividing 953 by 591, we get 1 with a remainder of 362.
The next digit of our result is 1. 
Result so far: 61.0
If we take 591 away from 953, we end up with 362.
Append the next digit (8) from the dividend to 362 and continue with: 3628 / 591

Going ahead to step 6:
591 goes into 3628 6 times with a remainder of 82.
Put 6 as the next digit of the answer. 
Result so far: 616.0
If we take 3546 away from 3628, we end up with 82.
Bring next digit (0) of the dividend behind the 82 and repeat the process: 820 / 591

On to step 7:
The number 591 fits into 820 1 times, leaving a remainder of 229.
Use 1 as the next digit of our solution. 
Result so far: 6161.0
The remainder is 229 after subtracting 591 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Step 8:
2290 divided by 591 is 3 with a remainder of 517.
The next digit of our result is 3. 
Result so far: 6161.3
The remainder is 517 after subtracting 1773 from 2290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5170, and continue the process.

Going ahead to step 9:
When dividing 5170 by 591, we get 8 with a remainder of 442.
The number 8 becomes the next digit in our result. 
Result so far: 6161.38
If we subtract 4728 from 5170, we get 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

On to step 10:
If we divide 4420 by 591, we get 7 and a remainder of 283.
Record the quotient 7 as the next digit in the result. 
Result so far: 6161.387
If we take 4137 away from 4420, we end up with 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Step 11:
If we divide 2830 by 591, we get 4 and a remainder of 466.
The next digit of our result is 4. 
Result so far: 6161.3874
If we subtract 2364 from 2830, we get 466.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

Going ahead to step 12:
When dividing 4660 by 591, we get 7 with a remainder of 523.
Put 7 as the next digit of the answer. 
Result so far: 6161.38747
If we take 4137 away from 4660, we end up with 523.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5230, and continue the process.

On to step 13:
When dividing 5230 by 591, we get 8 with a remainder of 502.
Write down 8 as next digit of the result. 
Result so far: 6161.387478
The remainder is 502 after subtracting 4728 from 5230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Advancing to step 14:
591 goes into 5020 8 times with a remainder of 292.
Write down 8 as next digit of the result. 
Result so far: 6161.3874788
Subtracting 4728 from 5020 leaves us with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Our division results in 6161.3874788 with a remaining 2.92e-06.