37821691 divided by 845 
The aim is to understand the frequency of 845 in 37821691.

On to step 1:
When dividing 3 by 845, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 845

On to step 2:
When dividing 37 by 845, we get 0 with a remainder of 37.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 37 after subtracting 0 from 37.
Grab the next digit (8) from the dividend, add it to 37, then carry on: 378 / 845

Going ahead to step 3:
If we divide 378 by 845, we get 0 and a remainder of 378.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 378 after subtracting 0 from 378.
Take the next digit (2) from the dividend and append it to 378, then repeat: 3782 / 845

Moving on to step 4:
3782 divided by 845 is 4 with a remainder of 402.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 3380 from 3782 to get 402.
Include the next digit (1) from the dividend after 402, then repeat: 4021 / 845

Going ahead to step 5:
4021 divided by 845 is 4 with a remainder of 641.
The number 4 becomes the next digit in our result. 
Result so far: 44.0
If we subtract 3380 from 4021, we get 641.
Include the next digit (6) from the dividend after 641, then repeat: 6416 / 845

Let's proceed to step 6:
6416 divided by 845 is 7 with a remainder of 501.
Put 7 as the next digit of the answer. 
Result so far: 447.0
The remainder is 501 after subtracting 5915 from 6416.
Append the next digit (9) from the dividend to 501 and continue with: 5019 / 845

Step 7:
845 goes into 5019 5 times with a remainder of 794.
Use 5 as the next digit of our solution. 
Result so far: 4475.0
Subtract 4225 from 5019 to get 794.
Bring next digit (1) of the dividend behind the 794 and repeat the process: 7941 / 845

Step 8:
The number 845 fits into 7941 9 times, leaving a remainder of 336.
Use 9 as the next digit of our solution. 
Result so far: 44759.0
Subtract 7605 from 7941 to get 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Advancing to step 9:
3360 divided by 845 is 3 with a remainder of 825.
The next digit of our result is 3. 
Result so far: 44759.3
Subtracting 2535 from 3360 leaves us with 825.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8250, and continue the process.

Advancing to step 10:
If we divide 8250 by 845, we get 9 and a remainder of 645.
Write down 9 as next digit of the result. 
Result so far: 44759.39
Subtract 7605 from 8250 to get 645.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6450, and continue the process.

Let's proceed to step 11:
When dividing 6450 by 845, we get 7 with a remainder of 535.
Put 7 as the next digit of the answer. 
Result so far: 44759.397
The remainder is 535 after subtracting 5915 from 6450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5350, and continue the process.

Going ahead to step 12:
845 goes into 5350 6 times with a remainder of 280.
The next digit of our result is 6. 
Result so far: 44759.3976
Subtracting 5070 from 5350 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

On to step 13:
845 can be fit into 2800 3 times, resulting in a remainder of 265.
The number 3 becomes the next digit in our result. 
Result so far: 44759.39763
The remainder is 265 after subtracting 2535 from 2800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

On to step 14:
The number 845 fits into 2650 3 times, leaving a remainder of 115.
Record the quotient 3 as the next digit in the result. 
Result so far: 44759.397633
If we subtract 2535 from 2650, we get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

The final result is 44759.397633 with a remainder of 1.15e-05.