18747670 ÷ 691 
The aim is to understand the frequency of 691 in 18747670.

On to step 1:
691 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 691

On to step 2:
When dividing 18 by 691, we get 0 with a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 18 leaves us with 18.
Include the next digit (7) from the dividend after 18, then repeat: 187 / 691

Step 3:
The number 691 fits into 187 0 times, leaving a remainder of 187.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 187 after subtracting 0 from 187.
Bring next digit (4) of the dividend behind the 187 and repeat the process: 1874 / 691

Let's proceed to step 4:
If we divide 1874 by 691, we get 2 and a remainder of 492.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 1382 away from 1874, we end up with 492.
Append the next digit (7) from the dividend to 492 and continue with: 4927 / 691

Moving on to step 5:
691 can be fit into 4927 7 times, resulting in a remainder of 90.
Put 7 as the next digit of the answer. 
Result so far: 27.0
Subtracting 4837 from 4927 leaves us with 90.
Take the next digit (6) from the dividend and append it to 90, then repeat: 906 / 691

Advancing to step 6:
906 divided by 691 is 1 with a remainder of 215.
The next digit of our result is 1. 
Result so far: 271.0
Deduct 691 from 906 and we're left with 215.
Fetch the next digit (7) from the dividend, attach it to 215 and continue: 2157 / 691

Advancing to step 7:
691 can be fit into 2157 3 times, resulting in a remainder of 84.
Put 3 as the next digit of the answer. 
Result so far: 2713.0
Deduct 2073 from 2157 and we're left with 84.
Take the next digit (0) from the dividend and append it to 84, then repeat: 840 / 691

Moving on to step 8:
When dividing 840 by 691, we get 1 with a remainder of 149.
Put 1 as the next digit of the answer. 
Result so far: 27131.0
Deduct 691 from 840 and we're left with 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Advancing to step 9:
691 goes into 1490 2 times with a remainder of 108.
The next digit of our result is 2. 
Result so far: 27131.2
If we subtract 1382 from 1490, we get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Moving on to step 10:
If we divide 1080 by 691, we get 1 and a remainder of 389.
The next digit of our result is 1. 
Result so far: 27131.21
If we subtract 691 from 1080, we get 389.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3890, and continue the process.

Advancing to step 11:
691 goes into 3890 5 times with a remainder of 435.
Record the quotient 5 as the next digit in the result. 
Result so far: 27131.215
Subtract 3455 from 3890 to get 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

On to step 12:
691 goes into 4350 6 times with a remainder of 204.
Put 6 as the next digit of the answer. 
Result so far: 27131.2156
If we take 4146 away from 4350, we end up with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

On to step 13:
When dividing 2040 by 691, we get 2 with a remainder of 658.
The next digit of our result is 2. 
Result so far: 27131.21562
If we subtract 1382 from 2040, we get 658.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6580, and continue the process.

Step 14:
The number 691 fits into 6580 9 times, leaving a remainder of 361.
Use 9 as the next digit of our solution. 
Result so far: 27131.215629
If we subtract 6219 from 6580, we get 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

Moving on to step 15:
691 goes into 3610 5 times with a remainder of 155.
Put 5 as the next digit of the answer. 
Result so far: 27131.2156295
Subtract 3455 from 3610 to get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Advancing to step 16:
1550 divided by 691 is 2 with a remainder of 168.
The number 2 becomes the next digit in our result. 
Result so far: 27131.21562952
Subtracting 1382 from 1550 leaves us with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

The final outcome is 27131.21562952, with a leftover of 1.68e-07.