We look at the division of 5251104 by 866 
The aim is to understand the frequency of 866 in 5251104.

Moving on to step 1:
The number 866 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 866

On to step 2:
52 divided by 866 is 0 with a remainder of 52.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 52 leaves us with 52.
Append the next digit (5) from the dividend to 52 and continue with: 525 / 866

Let's proceed to step 3:
866 can be fit into 525 0 times, resulting in a remainder of 525.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 525 and we're left with 525.
Append the next digit (1) from the dividend to 525 and continue with: 5251 / 866

Let's proceed to step 4:
866 goes into 5251 6 times with a remainder of 55.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 5196 from 5251 and we're left with 55.
Bring next digit (1) of the dividend behind the 55 and repeat the process: 551 / 866

On to step 5:
If we divide 551 by 866, we get 0 and a remainder of 551.
The number 0 becomes the next digit in our result. 
Result so far: 60.0
If we subtract 0 from 551, we get 551.
Append the next digit (0) from the dividend to 551 and continue with: 5510 / 866

Going ahead to step 6:
866 goes into 5510 6 times with a remainder of 314.
Write down 6 as next digit of the result. 
Result so far: 606.0
The remainder is 314 after subtracting 5196 from 5510.
Bring next digit (4) of the dividend behind the 314 and repeat the process: 3144 / 866

Let's proceed to step 7:
3144 divided by 866 is 3 with a remainder of 546.
Use 3 as the next digit of our solution. 
Result so far: 6063.0
Deduct 2598 from 3144 and we're left with 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

On to step 8:
If we divide 5460 by 866, we get 6 and a remainder of 264.
Write down 6 as next digit of the result. 
Result so far: 6063.6
The remainder is 264 after subtracting 5196 from 5460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Advancing to step 9:
866 goes into 2640 3 times with a remainder of 42.
Use 3 as the next digit of our solution. 
Result so far: 6063.63
The remainder is 42 after subtracting 2598 from 2640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 10:
866 goes into 420 0 times with a remainder of 420.
Write down 0 as next digit of the result. 
Result so far: 6063.63
If we take 0 away from 420, we end up with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Advancing to step 11:
If we divide 4200 by 866, we get 4 and a remainder of 736.
Put 4 as the next digit of the answer. 
Result so far: 6063.6304
Deduct 3464 from 4200 and we're left with 736.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7360, and continue the process.

On to step 12:
866 can be fit into 7360 8 times, resulting in a remainder of 432.
Record the quotient 8 as the next digit in the result. 
Result so far: 6063.63048
If we subtract 6928 from 7360, we get 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Moving on to step 13:
4320 divided by 866 is 4 with a remainder of 856.
Record the quotient 4 as the next digit in the result. 
Result so far: 6063.630484
The remainder is 856 after subtracting 3464 from 4320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8560, and continue the process.

Let's proceed to step 14:
When dividing 8560 by 866, we get 9 with a remainder of 766.
Put 9 as the next digit of the answer. 
Result so far: 6063.6304849
Subtracting 7794 from 8560 leaves us with 766.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7660, and continue the process.

Advancing to step 15:
If we divide 7660 by 866, we get 8 and a remainder of 732.
Write down 8 as next digit of the result. 
Result so far: 6063.63048498
If we take 6928 away from 7660, we end up with 732.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7320, and continue the process.

The quotient of the division is 6063.63048498, and the remainder is 7.32e-07.