We look at the division of 37376389 by 811 
The aim is to understand the frequency of 811 in 37376389.

On to step 1:
When dividing 3 by 811, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 811

Moving on to step 2:
37 divided by 811 is 0 with a remainder of 37.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 37, we end up with 37.
Include the next digit (3) from the dividend after 37, then repeat: 373 / 811

Let's proceed to step 3:
373 divided by 811 is 0 with a remainder of 373.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 373 leaves us with 373.
Bring next digit (7) of the dividend behind the 373 and repeat the process: 3737 / 811

Moving on to step 4:
811 goes into 3737 4 times with a remainder of 493.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 3244 from 3737 and we're left with 493.
Grab the next digit (6) from the dividend, add it to 493, then carry on: 4936 / 811

Advancing to step 5:
If we divide 4936 by 811, we get 6 and a remainder of 70.
The next digit of our result is 6. 
Result so far: 46.0
The remainder is 70 after subtracting 4866 from 4936.
Fetch the next digit (3) from the dividend, attach it to 70 and continue: 703 / 811

Advancing to step 6:
703 divided by 811 is 0 with a remainder of 703.
The number 0 becomes the next digit in our result. 
Result so far: 460.0
The remainder is 703 after subtracting 0 from 703.
Bring next digit (8) of the dividend behind the 703 and repeat the process: 7038 / 811

Moving on to step 7:
The number 811 fits into 7038 8 times, leaving a remainder of 550.
The number 8 becomes the next digit in our result. 
Result so far: 4608.0
The remainder is 550 after subtracting 6488 from 7038.
Include the next digit (9) from the dividend after 550, then repeat: 5509 / 811

Let's proceed to step 8:
811 goes into 5509 6 times with a remainder of 643.
The number 6 becomes the next digit in our result. 
Result so far: 46086.0
If we take 4866 away from 5509, we end up with 643.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6430, and continue the process.

On to step 9:
6430 divided by 811 is 7 with a remainder of 753.
The number 7 becomes the next digit in our result. 
Result so far: 46086.7
If we subtract 5677 from 6430, we get 753.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7530, and continue the process.

Let's proceed to step 10:
7530 divided by 811 is 9 with a remainder of 231.
Use 9 as the next digit of our solution. 
Result so far: 46086.79
If we subtract 7299 from 7530, we get 231.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Advancing to step 11:
The number 811 fits into 2310 2 times, leaving a remainder of 688.
Write down 2 as next digit of the result. 
Result so far: 46086.792
If we take 1622 away from 2310, we end up with 688.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6880, and continue the process.

Let's proceed to step 12:
811 can be fit into 6880 8 times, resulting in a remainder of 392.
Record the quotient 8 as the next digit in the result. 
Result so far: 46086.7928
Subtract 6488 from 6880 to get 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Advancing to step 13:
The number 811 fits into 3920 4 times, leaving a remainder of 676.
Record the quotient 4 as the next digit in the result. 
Result so far: 46086.79284
Subtracting 3244 from 3920 leaves us with 676.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6760, and continue the process.

Let's proceed to step 14:
When dividing 6760 by 811, we get 8 with a remainder of 272.
Record the quotient 8 as the next digit in the result. 
Result so far: 46086.792848
Subtract 6488 from 6760 to get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Let's proceed to step 15:
If we divide 2720 by 811, we get 3 and a remainder of 287.
Record the quotient 3 as the next digit in the result. 
Result so far: 46086.7928483
Deduct 2433 from 2720 and we're left with 287.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2870, and continue the process.

Going ahead to step 16:
When dividing 2870 by 811, we get 3 with a remainder of 437.
The number 3 becomes the next digit in our result. 
Result so far: 46086.79284833
If we subtract 2433 from 2870, we get 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

The final result is 46086.79284833 with a remainder of 4.37e-07.