We're dividing 879736 by 57 
The aim is to understand the frequency of 57 in 879736.

Going ahead to step 1:
The number 57 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 57

Let's proceed to step 2:
87 divided by 57 is 1 with a remainder of 30.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 57 away from 87, we end up with 30.
Bring next digit (9) of the dividend behind the 30 and repeat the process: 309 / 57

Going ahead to step 3:
The number 57 fits into 309 5 times, leaving a remainder of 24.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we take 285 away from 309, we end up with 24.
Take the next digit (7) from the dividend and append it to 24, then repeat: 247 / 57

Going ahead to step 4:
57 goes into 247 4 times with a remainder of 19.
Record the quotient 4 as the next digit in the result. 
Result so far: 154.0
If we take 228 away from 247, we end up with 19.
Append the next digit (3) from the dividend to 19 and continue with: 193 / 57

On to step 5:
193 divided by 57 is 3 with a remainder of 22.
The next digit of our result is 3. 
Result so far: 1543.0
If we take 171 away from 193, we end up with 22.
Grab the next digit (6) from the dividend, add it to 22, then carry on: 226 / 57

Advancing to step 6:
226 divided by 57 is 3 with a remainder of 55.
The number 3 becomes the next digit in our result. 
Result so far: 15433.0
Subtract 171 from 226 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 7:
If we divide 550 by 57, we get 9 and a remainder of 37.
Use 9 as the next digit of our solution. 
Result so far: 15433.9
Deduct 513 from 550 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 8:
If we divide 370 by 57, we get 6 and a remainder of 28.
Write down 6 as next digit of the result. 
Result so far: 15433.96
Subtracting 342 from 370 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
The number 57 fits into 280 4 times, leaving a remainder of 52.
Record the quotient 4 as the next digit in the result. 
Result so far: 15433.964
Subtracting 228 from 280 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 10:
57 can be fit into 520 9 times, resulting in a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 15433.9649
If we subtract 513 from 520, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 11:
70 divided by 57 is 1 with a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 15433.96491
Deduct 57 from 70 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 12:
When dividing 130 by 57, we get 2 with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 15433.964912
Subtract 114 from 130 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 13:
When dividing 160 by 57, we get 2 with a remainder of 46.
The next digit of our result is 2. 
Result so far: 15433.9649122
If we subtract 114 from 160, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

The final outcome is 15433.9649122, with a leftover of 4.6e-07.