We're dividing 87294077 by 551 
The aim is to understand the frequency of 551 in 87294077.

Step 1:
8 divided by 551 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 551

Advancing to step 2:
If we divide 87 by 551, we get 0 and a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 87 to get 87.
Append the next digit (2) from the dividend to 87 and continue with: 872 / 551

Step 3:
If we divide 872 by 551, we get 1 and a remainder of 321.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 321 after subtracting 551 from 872.
Include the next digit (9) from the dividend after 321, then repeat: 3219 / 551

Advancing to step 4:
If we divide 3219 by 551, we get 5 and a remainder of 464.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Deduct 2755 from 3219 and we're left with 464.
Bring next digit (4) of the dividend behind the 464 and repeat the process: 4644 / 551

Going ahead to step 5:
The number 551 fits into 4644 8 times, leaving a remainder of 236.
Use 8 as the next digit of our solution. 
Result so far: 158.0
Deduct 4408 from 4644 and we're left with 236.
Grab the next digit (0) from the dividend, add it to 236, then carry on: 2360 / 551

Going ahead to step 6:
When dividing 2360 by 551, we get 4 with a remainder of 156.
Write down 4 as next digit of the result. 
Result so far: 1584.0
If we subtract 2204 from 2360, we get 156.
Bring next digit (7) of the dividend behind the 156 and repeat the process: 1567 / 551

Step 7:
When dividing 1567 by 551, we get 2 with a remainder of 465.
The next digit of our result is 2. 
Result so far: 15842.0
The remainder is 465 after subtracting 1102 from 1567.
Take the next digit (7) from the dividend and append it to 465, then repeat: 4657 / 551

On to step 8:
When dividing 4657 by 551, we get 8 with a remainder of 249.
Use 8 as the next digit of our solution. 
Result so far: 158428.0
If we subtract 4408 from 4657, we get 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

Advancing to step 9:
2490 divided by 551 is 4 with a remainder of 286.
Record the quotient 4 as the next digit in the result. 
Result so far: 158428.4
Deduct 2204 from 2490 and we're left with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Step 10:
The number 551 fits into 2860 5 times, leaving a remainder of 105.
Put 5 as the next digit of the answer. 
Result so far: 158428.45
If we subtract 2755 from 2860, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Moving on to step 11:
551 goes into 1050 1 times with a remainder of 499.
Write down 1 as next digit of the result. 
Result so far: 158428.451
If we take 551 away from 1050, we end up with 499.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4990, and continue the process.

Going ahead to step 12:
551 can be fit into 4990 9 times, resulting in a remainder of 31.
The next digit of our result is 9. 
Result so far: 158428.4519
If we take 4959 away from 4990, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 13:
If we divide 310 by 551, we get 0 and a remainder of 310.
Record the quotient 0 as the next digit in the result. 
Result so far: 158428.4519
The remainder is 310 after subtracting 0 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Advancing to step 14:
The number 551 fits into 3100 5 times, leaving a remainder of 345.
Write down 5 as next digit of the result. 
Result so far: 158428.451905
Deduct 2755 from 3100 and we're left with 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Let's proceed to step 15:
551 can be fit into 3450 6 times, resulting in a remainder of 144.
The number 6 becomes the next digit in our result. 
Result so far: 158428.4519056
Deduct 3306 from 3450 and we're left with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Advancing to step 16:
The number 551 fits into 1440 2 times, leaving a remainder of 338.
Put 2 as the next digit of the answer. 
Result so far: 158428.45190562
Deduct 1102 from 1440 and we're left with 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

The final result is 158428.45190562 with a remainder of 3.38e-07.