We look at the division of 153170 by 57 
The aim is to understand the frequency of 57 in 153170.

Let's proceed to step 1:
57 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 57

On to step 2:
The number 57 fits into 15 0 times, leaving a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Append the next digit (3) from the dividend to 15 and continue with: 153 / 57

Let's proceed to step 3:
153 divided by 57 is 2 with a remainder of 39.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 114 from 153, we get 39.
Grab the next digit (1) from the dividend, add it to 39, then carry on: 391 / 57

Going ahead to step 4:
57 can be fit into 391 6 times, resulting in a remainder of 49.
The number 6 becomes the next digit in our result. 
Result so far: 26.0
Deduct 342 from 391 and we're left with 49.
Include the next digit (7) from the dividend after 49, then repeat: 497 / 57

Advancing to step 5:
The number 57 fits into 497 8 times, leaving a remainder of 41.
Record the quotient 8 as the next digit in the result. 
Result so far: 268.0
If we subtract 456 from 497, we get 41.
Append the next digit (0) from the dividend to 41 and continue with: 410 / 57

Step 6:
When dividing 410 by 57, we get 7 with a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 2687.0
Subtracting 399 from 410 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 7:
57 can be fit into 110 1 times, resulting in a remainder of 53.
The next digit of our result is 1. 
Result so far: 2687.1
If we subtract 57 from 110, we 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.

Step 8:
57 goes into 530 9 times with a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 2687.19
The remainder is 17 after subtracting 513 from 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 9:
The number 57 fits into 170 2 times, leaving a remainder of 56.
Use 2 as the next digit of our solution. 
Result so far: 2687.192
Deduct 114 from 170 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 10:
The number 57 fits into 560 9 times, leaving a remainder of 47.
Use 9 as the next digit of our solution. 
Result so far: 2687.1929
If we subtract 513 from 560, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 11:
When dividing 470 by 57, we get 8 with a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 2687.19298
If we subtract 456 from 470, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 12:
57 can be fit into 140 2 times, resulting in a remainder of 26.
The number 2 becomes the next digit in our result. 
Result so far: 2687.192982
If we subtract 114 from 140, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 13:
If we divide 260 by 57, we get 4 and a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 2687.1929824
Subtract 228 from 260 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 14:
57 can be fit into 320 5 times, resulting in a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 2687.19298245
The remainder is 35 after subtracting 285 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

After the division, we end up with 2687.19298245 and a remainder of 3.5e-08.