We look at the division of 421655 by 76 
The aim is to understand the frequency of 76 in 421655.

Going ahead to step 1:
The number 76 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 76

Moving on to step 2:
42 divided by 76 is 0 with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Grab the next digit (1) from the dividend, add it to 42, then carry on: 421 / 76

Step 3:
The number 76 fits into 421 5 times, leaving a remainder of 41.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 380 from 421 leaves us with 41.
Append the next digit (6) from the dividend to 41 and continue with: 416 / 76

Going ahead to step 4:
416 divided by 76 is 5 with a remainder of 36.
The number 5 becomes the next digit in our result. 
Result so far: 55.0
Subtract 380 from 416 to get 36.
Bring next digit (5) of the dividend behind the 36 and repeat the process: 365 / 76

Going ahead to step 5:
76 goes into 365 4 times with a remainder of 61.
Use 4 as the next digit of our solution. 
Result so far: 554.0
Subtract 304 from 365 to get 61.
Grab the next digit (5) from the dividend, add it to 61, then carry on: 615 / 76

On to step 6:
When dividing 615 by 76, we get 8 with a remainder of 7.
Record the quotient 8 as the next digit in the result. 
Result so far: 5548.0
Subtract 608 from 615 to 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 7:
If we divide 70 by 76, we get 0 and a remainder of 70.
The next digit of our result is 0. 
Result so far: 5548.0
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 8:
If we divide 700 by 76, we get 9 and a remainder of 16.
Put 9 as the next digit of the answer. 
Result so far: 5548.09
The remainder is 16 after subtracting 684 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
If we divide 160 by 76, we get 2 and a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 5548.092
Subtracting 152 from 160 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
If we divide 80 by 76, we get 1 and a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 5548.0921
Deduct 76 from 80 and we're left 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.

Advancing to step 11:
The number 76 fits into 40 0 times, leaving a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 5548.0921
Subtracting 0 from 40 leaves us 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.

Moving on to step 12:
76 goes into 400 5 times with a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 5548.092105
The remainder is 20 after subtracting 380 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 13:
76 goes into 200 2 times with a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 5548.0921052
If we take 152 away from 200, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 14:
If we divide 480 by 76, we get 6 and a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 5548.09210526
If we take 456 away from 480, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 5548.09210526 and a remainder of 2.4e-08.