Let's divide 661681 by 57
The aim is to understand the frequency of 57 in 661681.

Let's proceed to step 1:
When dividing 6 by 57, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 57

Moving on to step 2:
57 can be fit into 66 1 times, resulting in a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 57 away from 66, we end up with 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 57

Advancing to step 3:
If we divide 91 by 57, we get 1 and a remainder of 34.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 57 away from 91, we end up with 34.
Grab the next digit (6) from the dividend, add it to 34, then carry on: 346 / 57

Let's proceed to step 4:
If we divide 346 by 57, we get 6 and a remainder of 4.
The next digit of our result is 6. 
Result so far: 116.0
Deduct 342 from 346 and we're left with 4.
Append the next digit (8) from the dividend to 4 and continue with: 48 / 57

Step 5:
When dividing 48 by 57, we get 0 with a remainder of 48.
Put 0 as the next digit of the answer. 
Result so far: 1160.0
If we subtract 0 from 48, we get 48.
Bring next digit (1) of the dividend behind the 48 and repeat the process: 481 / 57

Moving on to step 6:
When dividing 481 by 57, we get 8 with a remainder of 25.
The next digit of our result is 8. 
Result so far: 11608.0
Deduct 456 from 481 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 7:
When dividing 250 by 57, we get 4 with a remainder of 22.
Write down 4 as next digit of the result. 
Result so far: 11608.4
If we subtract 228 from 250, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 8:
The number 57 fits into 220 3 times, leaving a remainder of 49.
The number 3 becomes the next digit in our result. 
Result so far: 11608.43
Deduct 171 from 220 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 9:
The number 57 fits into 490 8 times, leaving a remainder of 34.
Put 8 as the next digit of the answer. 
Result so far: 11608.438
If we take 456 away from 490, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 10:
If we divide 340 by 57, we get 5 and a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 11608.4385
Deduct 285 from 340 and we're left with 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 11:
57 goes into 550 9 times with a remainder of 37.
Record the quotient 9 as the next digit in the result. 
Result so far: 11608.43859
If we take 513 away from 550, we end up 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.

On to step 12:
57 goes into 370 6 times with a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 11608.438596
Subtract 342 from 370 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 13:
57 can be fit into 280 4 times, resulting in a remainder of 52.
The number 4 becomes the next digit in our result. 
Result so far: 11608.4385964
If we take 228 away from 280, we end up 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.

On to step 14:
520 divided by 57 is 9 with a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 11608.43859649
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.

Our division results in 11608.43859649 with a remaining 7e-09.