We're dividing 61312018 by 168 
The aim is to understand the frequency of 168 in 61312018.

Advancing to step 1:
If we divide 6 by 168, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (1) from the dividend to 6 and continue with: 61 / 168

On to step 2:
168 goes into 61 0 times with a remainder of 61.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 61, we end up with 61.
Append the next digit (3) from the dividend to 61 and continue with: 613 / 168

Let's proceed to step 3:
When dividing 613 by 168, we get 3 with a remainder of 109.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 504 away from 613, we end up with 109.
Grab the next digit (1) from the dividend, add it to 109, then carry on: 1091 / 168

Going ahead to step 4:
The number 168 fits into 1091 6 times, leaving a remainder of 83.
The next digit of our result is 6. 
Result so far: 36.0
Subtracting 1008 from 1091 leaves us with 83.
Take the next digit (2) from the dividend and append it to 83, then repeat: 832 / 168

Step 5:
The number 168 fits into 832 4 times, leaving a remainder of 160.
Put 4 as the next digit of the answer. 
Result so far: 364.0
Deduct 672 from 832 and we're left with 160.
Append the next digit (0) from the dividend to 160 and continue with: 1600 / 168

Advancing to step 6:
The number 168 fits into 1600 9 times, leaving a remainder of 88.
Write down 9 as next digit of the result. 
Result so far: 3649.0
Deduct 1512 from 1600 and we're left with 88.
Fetch the next digit (1) from the dividend, attach it to 88 and continue: 881 / 168

On to step 7:
If we divide 881 by 168, we get 5 and a remainder of 41.
Record the quotient 5 as the next digit in the result. 
Result so far: 36495.0
Subtracting 840 from 881 leaves us with 41.
Append the next digit (8) from the dividend to 41 and continue with: 418 / 168

Advancing to step 8:
418 divided by 168 is 2 with a remainder of 82.
Put 2 as the next digit of the answer. 
Result so far: 364952.0
The remainder is 82 after subtracting 336 from 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Advancing to step 9:
168 can be fit into 820 4 times, resulting in a remainder of 148.
Use 4 as the next digit of our solution. 
Result so far: 364952.4
If we subtract 672 from 820, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Going ahead to step 10:
168 can be fit into 1480 8 times, resulting in a remainder of 136.
The next digit of our result is 8. 
Result so far: 364952.48
If we take 1344 away from 1480, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 11:
When dividing 1360 by 168, we get 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 364952.488
If we take 1344 away from 1360, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 364952.488, with a leftover of 0.0016.