We look at the division of 557980 by 67 
The aim is to understand the frequency of 67 in 557980.

Let's proceed to step 1:
When dividing 5 by 67, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 67

Moving on to step 2:
55 divided by 67 is 0 with a remainder of 55.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Take the next digit (7) from the dividend and append it to 55, then repeat: 557 / 67

On to step 3:
67 can be fit into 557 8 times, resulting in a remainder of 21.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 536 from 557 and we're left with 21.
Grab the next digit (9) from the dividend, add it to 21, then carry on: 219 / 67

On to step 4:
67 goes into 219 3 times with a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 83.0
If we take 201 away from 219, we end up with 18.
Bring next digit (8) of the dividend behind the 18 and repeat the process: 188 / 67

On to step 5:
188 divided by 67 is 2 with a remainder of 54.
The number 2 becomes the next digit in our result. 
Result so far: 832.0
If we take 134 away from 188, we end up with 54.
Append the next digit (0) from the dividend to 54 and continue with: 540 / 67

On to step 6:
If we divide 540 by 67, we get 8 and a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 8328.0
If we take 536 away from 540, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 7:
40 divided by 67 is 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 8328.0
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
400 divided by 67 is 5 with a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 8328.05
If we subtract 335 from 400, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 9:
If we divide 650 by 67, we get 9 and a remainder of 47.
Put 9 as the next digit of the answer. 
Result so far: 8328.059
Deduct 603 from 650 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 10:
67 can be fit into 470 7 times, resulting in a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 8328.0597
If we subtract 469 from 470, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 11:
When dividing 10 by 67, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 8328.0597
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 12:
100 divided by 67 is 1 with a remainder of 33.
The next digit of our result is 1. 
Result so far: 8328.059701
The remainder is 33 after subtracting 67 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 13:
If we divide 330 by 67, we get 4 and a remainder of 62.
The number 4 becomes the next digit in our result. 
Result so far: 8328.0597014
Deduct 268 from 330 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 14:
620 divided by 67 is 9 with a remainder of 17.
Use 9 as the next digit of our solution. 
Result so far: 8328.05970149
Subtract 603 from 620 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

The final outcome is 8328.05970149, with a leftover of 1.7e-08.