We look at the division of 287939 by 37 
The aim is to understand the frequency of 37 in 287939.

Advancing to step 1:
The number 37 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 37

Moving on to step 2:
If we divide 28 by 37, we get 0 and a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Bring next digit (7) of the dividend behind the 28 and repeat the process: 287 / 37

On to step 3:
287 divided by 37 is 7 with a remainder of 28.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Deduct 259 from 287 and we're left with 28.
Include the next digit (9) from the dividend after 28, then repeat: 289 / 37

Going ahead to step 4:
The number 37 fits into 289 7 times, leaving a remainder of 30.
Use 7 as the next digit of our solution. 
Result so far: 77.0
If we subtract 259 from 289, we get 30.
Include the next digit (3) from the dividend after 30, then repeat: 303 / 37

On to step 5:
If we divide 303 by 37, we get 8 and a remainder of 7.
The next digit of our result is 8. 
Result so far: 778.0
If we take 296 away from 303, we end up with 7.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 37

On to step 6:
79 divided by 37 is 2 with a remainder of 5.
Write down 2 as next digit of the result. 
Result so far: 7782.0
Subtracting 74 from 79 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 7:
The number 37 fits into 50 1 times, leaving a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 7782.1
Subtract 37 from 50 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 8:
When dividing 130 by 37, we get 3 with a remainder of 19.
The number 3 becomes the next digit in our result. 
Result so far: 7782.13
Subtract 111 from 130 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 9:
37 goes into 190 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 7782.135
Deduct 185 from 190 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 10:
The number 37 fits into 50 1 times, leaving a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 7782.1351
The remainder is 13 after subtracting 37 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 11:
37 can be fit into 130 3 times, resulting in a remainder of 19.
The next digit of our result is 3. 
Result so far: 7782.13513
Subtract 111 from 130 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 12:
When dividing 190 by 37, we get 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 7782.135135
Subtracting 185 from 190 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 13:
The number 37 fits into 50 1 times, leaving a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 7782.1351351
If we subtract 37 from 50, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 14:
130 divided by 37 is 3 with a remainder of 19.
Put 3 as the next digit of the answer. 
Result so far: 7782.13513513
If we subtract 111 from 130, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

After the division, we end up with 7782.13513513 and a remainder of 1.9e-08.