We look at the division of 76485175 by 551 
The aim is to understand the frequency of 551 in 76485175.

On to step 1:
The number 551 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (6) from the dividend after 7, then repeat: 76 / 551

On to step 2:
551 can be fit into 76 0 times, resulting in a remainder of 76.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 76 leaves us with 76.
Include the next digit (4) from the dividend after 76, then repeat: 764 / 551

Let's proceed to step 3:
551 can be fit into 764 1 times, resulting in a remainder of 213.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 551 from 764 leaves us with 213.
Append the next digit (8) from the dividend to 213 and continue with: 2138 / 551

On to step 4:
When dividing 2138 by 551, we get 3 with a remainder of 485.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Deduct 1653 from 2138 and we're left with 485.
Bring next digit (5) of the dividend behind the 485 and repeat the process: 4855 / 551

Going ahead to step 5:
551 goes into 4855 8 times with a remainder of 447.
Put 8 as the next digit of the answer. 
Result so far: 138.0
Subtract 4408 from 4855 to get 447.
Append the next digit (1) from the dividend to 447 and continue with: 4471 / 551

On to step 6:
551 goes into 4471 8 times with a remainder of 63.
Use 8 as the next digit of our solution. 
Result so far: 1388.0
Subtract 4408 from 4471 to get 63.
Include the next digit (7) from the dividend after 63, then repeat: 637 / 551

On to step 7:
The number 551 fits into 637 1 times, leaving a remainder of 86.
Write down 1 as next digit of the result. 
Result so far: 13881.0
Deduct 551 from 637 and we're left with 86.
Include the next digit (5) from the dividend after 86, then repeat: 865 / 551

Moving on to step 8:
551 can be fit into 865 1 times, resulting in a remainder of 314.
Record the quotient 1 as the next digit in the result. 
Result so far: 138811.0
Subtracting 551 from 865 leaves us with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Going ahead to step 9:
551 can be fit into 3140 5 times, resulting in a remainder of 385.
The next digit of our result is 5. 
Result so far: 138811.5
If we subtract 2755 from 3140, we get 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Moving on to step 10:
When dividing 3850 by 551, we get 6 with a remainder of 544.
The next digit of our result is 6. 
Result so far: 138811.56
Subtract 3306 from 3850 to get 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Moving on to step 11:
When dividing 5440 by 551, we get 9 with a remainder of 481.
The next digit of our result is 9. 
Result so far: 138811.569
If we subtract 4959 from 5440, we get 481.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4810, and continue the process.

Going ahead to step 12:
If we divide 4810 by 551, we get 8 and a remainder of 402.
Put 8 as the next digit of the answer. 
Result so far: 138811.5698
If we subtract 4408 from 4810, we get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Moving on to step 13:
551 can be fit into 4020 7 times, resulting in a remainder of 163.
Record the quotient 7 as the next digit in the result. 
Result so far: 138811.56987
Subtract 3857 from 4020 to get 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Going ahead to step 14:
When dividing 1630 by 551, we get 2 with a remainder of 528.
Write down 2 as next digit of the result. 
Result so far: 138811.569872
If we subtract 1102 from 1630, we get 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Let's proceed to step 15:
551 can be fit into 5280 9 times, resulting in a remainder of 321.
Use 9 as the next digit of our solution. 
Result so far: 138811.5698729
If we subtract 4959 from 5280, we get 321.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

Going ahead to step 16:
The number 551 fits into 3210 5 times, leaving a remainder of 455.
Use 5 as the next digit of our solution. 
Result so far: 138811.56987295
The remainder is 455 after subtracting 2755 from 3210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

The quotient of the division is 138811.56987295, and the remainder is 4.55e-07.