We look at the division of 15361556 by 237 
The aim is to understand the frequency of 237 in 15361556.

Step 1:
237 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 237

Advancing to step 2:
237 can be fit into 15 0 times, resulting in a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Grab the next digit (3) from the dividend, add it to 15, then carry on: 153 / 237

Moving on to step 3:
If we divide 153 by 237, we get 0 and a remainder of 153.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 153 and we're left with 153.
Grab the next digit (6) from the dividend, add it to 153, then carry on: 1536 / 237

Going ahead to step 4:
237 can be fit into 1536 6 times, resulting in a remainder of 114.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 1422 from 1536 to get 114.
Grab the next digit (1) from the dividend, add it to 114, then carry on: 1141 / 237

Moving on to step 5:
1141 divided by 237 is 4 with a remainder of 193.
The number 4 becomes the next digit in our result. 
Result so far: 64.0
Subtract 948 from 1141 to get 193.
Grab the next digit (5) from the dividend, add it to 193, then carry on: 1935 / 237

Let's proceed to step 6:
When dividing 1935 by 237, we get 8 with a remainder of 39.
The number 8 becomes the next digit in our result. 
Result so far: 648.0
The remainder is 39 after subtracting 1896 from 1935.
Take the next digit (5) from the dividend and append it to 39, then repeat: 395 / 237

Going ahead to step 7:
The number 237 fits into 395 1 times, leaving a remainder of 158.
Record the quotient 1 as the next digit in the result. 
Result so far: 6481.0
If we subtract 237 from 395, we get 158.
Include the next digit (6) from the dividend after 158, then repeat: 1586 / 237

On to step 8:
If we divide 1586 by 237, we get 6 and a remainder of 164.
Put 6 as the next digit of the answer. 
Result so far: 64816.0
Deduct 1422 from 1586 and we're left with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

On to step 9:
The number 237 fits into 1640 6 times, leaving a remainder of 218.
Put 6 as the next digit of the answer. 
Result so far: 64816.6
Subtract 1422 from 1640 to get 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Going ahead to step 10:
237 goes into 2180 9 times with a remainder of 47.
The number 9 becomes the next digit in our result. 
Result so far: 64816.69
Subtracting 2133 from 2180 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 11:
237 can be fit into 470 1 times, resulting in a remainder of 233.
Write down 1 as next digit of the result. 
Result so far: 64816.691
Deduct 237 from 470 and we're left with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Advancing to step 12:
237 can be fit into 2330 9 times, resulting in a remainder of 197.
The next digit of our result is 9. 
Result so far: 64816.6919
If we take 2133 away from 2330, we end up with 197.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Advancing to step 13:
1970 divided by 237 is 8 with a remainder of 74.
The next digit of our result is 8. 
Result so far: 64816.69198
The remainder is 74 after subtracting 1896 from 1970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Advancing to step 14:
When dividing 740 by 237, we get 3 with a remainder of 29.
The number 3 becomes the next digit in our result. 
Result so far: 64816.691983
If we take 711 away from 740, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 15:
The number 237 fits into 290 1 times, leaving a remainder of 53.
Use 1 as the next digit of our solution. 
Result so far: 64816.6919831
The remainder is 53 after subtracting 237 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Advancing to step 16:
530 divided by 237 is 2 with a remainder of 56.
The number 2 becomes the next digit in our result. 
Result so far: 64816.69198312
If we subtract 474 from 530, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final outcome is 64816.69198312, with a leftover of 5.6e-08.