Let's divide 37961063 by 591
The aim is to understand the frequency of 591 in 37961063.

Going ahead to step 1:
3 divided by 591 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 591

On to step 2:
The number 591 fits into 37 0 times, leaving a remainder of 37.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 37 and we're left with 37.
Grab the next digit (9) from the dividend, add it to 37, then carry on: 379 / 591

Advancing to step 3:
591 can be fit into 379 0 times, resulting in a remainder of 379.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 379 to get 379.
Fetch the next digit (6) from the dividend, attach it to 379 and continue: 3796 / 591

Let's proceed to step 4:
591 can be fit into 3796 6 times, resulting in a remainder of 250.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we subtract 3546 from 3796, we get 250.
Bring next digit (1) of the dividend behind the 250 and repeat the process: 2501 / 591

Going ahead to step 5:
The number 591 fits into 2501 4 times, leaving a remainder of 137.
Use 4 as the next digit of our solution. 
Result so far: 64.0
Subtract 2364 from 2501 to get 137.
Fetch the next digit (0) from the dividend, attach it to 137 and continue: 1370 / 591

Let's proceed to step 6:
591 goes into 1370 2 times with a remainder of 188.
Put 2 as the next digit of the answer. 
Result so far: 642.0
If we subtract 1182 from 1370, we get 188.
Fetch the next digit (6) from the dividend, attach it to 188 and continue: 1886 / 591

Moving on to step 7:
The number 591 fits into 1886 3 times, leaving a remainder of 113.
Put 3 as the next digit of the answer. 
Result so far: 6423.0
If we take 1773 away from 1886, we end up with 113.
Grab the next digit (3) from the dividend, add it to 113, then carry on: 1133 / 591

Moving on to step 8:
When dividing 1133 by 591, we get 1 with a remainder of 542.
Write down 1 as next digit of the result. 
Result so far: 64231.0
Subtract 591 from 1133 to get 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

Moving on to step 9:
591 can be fit into 5420 9 times, resulting in a remainder of 101.
Record the quotient 9 as the next digit in the result. 
Result so far: 64231.9
Subtracting 5319 from 5420 leaves us with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Moving on to step 10:
When dividing 1010 by 591, we get 1 with a remainder of 419.
Record the quotient 1 as the next digit in the result. 
Result so far: 64231.91
Subtract 591 from 1010 to get 419.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Step 11:
591 goes into 4190 7 times with a remainder of 53.
Use 7 as the next digit of our solution. 
Result so far: 64231.917
Subtract 4137 from 4190 to get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Let's proceed to step 12:
530 divided by 591 is 0 with a remainder of 530.
Put 0 as the next digit of the answer. 
Result so far: 64231.917
If we subtract 0 from 530, we get 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

On to step 13:
591 goes into 5300 8 times with a remainder of 572.
Put 8 as the next digit of the answer. 
Result so far: 64231.91708
Deduct 4728 from 5300 and we're left with 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

Let's proceed to step 14:
5720 divided by 591 is 9 with a remainder of 401.
The number 9 becomes the next digit in our result. 
Result so far: 64231.917089
The remainder is 401 after subtracting 5319 from 5720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Advancing to step 15:
If we divide 4010 by 591, we get 6 and a remainder of 464.
Use 6 as the next digit of our solution. 
Result so far: 64231.9170896
The remainder is 464 after subtracting 3546 from 4010.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Step 16:
When dividing 4640 by 591, we get 7 with a remainder of 503.
Use 7 as the next digit of our solution. 
Result so far: 64231.91708967
Subtract 4137 from 4640 to get 503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

Our division results in 64231.91708967 with a remaining 5.03e-07.