51878480 ÷ 803 
The aim is to understand the frequency of 803 in 51878480.

Advancing to step 1:
The number 803 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 803

On to step 2:
The number 803 fits into 51 0 times, leaving a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Take the next digit (8) from the dividend and append it to 51, then repeat: 518 / 803

On to step 3:
The number 803 fits into 518 0 times, leaving a remainder of 518.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 518 leaves us with 518.
Grab the next digit (7) from the dividend, add it to 518, then carry on: 5187 / 803

On to step 4:
The number 803 fits into 5187 6 times, leaving a remainder of 369.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 4818 from 5187 to get 369.
Append the next digit (8) from the dividend to 369 and continue with: 3698 / 803

Advancing to step 5:
803 can be fit into 3698 4 times, resulting in a remainder of 486.
Record the quotient 4 as the next digit in the result. 
Result so far: 64.0
The remainder is 486 after subtracting 3212 from 3698.
Bring next digit (4) of the dividend behind the 486 and repeat the process: 4864 / 803

Moving on to step 6:
When dividing 4864 by 803, we get 6 with a remainder of 46.
Write down 6 as next digit of the result. 
Result so far: 646.0
If we take 4818 away from 4864, we end up with 46.
Include the next digit (8) from the dividend after 46, then repeat: 468 / 803

Step 7:
803 goes into 468 0 times with a remainder of 468.
Record the quotient 0 as the next digit in the result. 
Result so far: 6460.0
The remainder is 468 after subtracting 0 from 468.
Grab the next digit (0) from the dividend, add it to 468, then carry on: 4680 / 803

Step 8:
4680 divided by 803 is 5 with a remainder of 665.
Write down 5 as next digit of the result. 
Result so far: 64605.0
Deduct 4015 from 4680 and we're left with 665.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6650, and continue the process.

Going ahead to step 9:
The number 803 fits into 6650 8 times, leaving a remainder of 226.
Write down 8 as next digit of the result. 
Result so far: 64605.8
Deduct 6424 from 6650 and we're left with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Going ahead to step 10:
803 goes into 2260 2 times with a remainder of 654.
The next digit of our result is 2. 
Result so far: 64605.82
Deduct 1606 from 2260 and we're left with 654.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6540, and continue the process.

Going ahead to step 11:
The number 803 fits into 6540 8 times, leaving a remainder of 116.
Use 8 as the next digit of our solution. 
Result so far: 64605.828
The remainder is 116 after subtracting 6424 from 6540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

On to step 12:
When dividing 1160 by 803, we get 1 with a remainder of 357.
The next digit of our result is 1. 
Result so far: 64605.8281
Subtracting 803 from 1160 leaves us with 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Going ahead to step 13:
When dividing 3570 by 803, we get 4 with a remainder of 358.
The next digit of our result is 4. 
Result so far: 64605.82814
If we take 3212 away from 3570, we end up with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Let's proceed to step 14:
The number 803 fits into 3580 4 times, leaving a remainder of 368.
Record the quotient 4 as the next digit in the result. 
Result so far: 64605.828144
Subtracting 3212 from 3580 leaves us with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

The final result is 64605.828144 with a remainder of 3.68e-05.