We look at the division of 51438740 by 803 
We want to figure out the number of times 51438740 can be divided by 803.

On to step 1:
5 divided by 803 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 803

On to step 2:
51 divided by 803 is 0 with a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Include the next digit (4) from the dividend after 51, then repeat: 514 / 803

Step 3:
803 can be fit into 514 0 times, resulting in a remainder of 514.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 514 to get 514.
Append the next digit (3) from the dividend to 514 and continue with: 5143 / 803

Let's proceed to step 4:
The number 803 fits into 5143 6 times, leaving a remainder of 325.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we take 4818 away from 5143, we end up with 325.
Fetch the next digit (8) from the dividend, attach it to 325 and continue: 3258 / 803

Let's proceed to step 5:
The number 803 fits into 3258 4 times, leaving a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 64.0
Subtract 3212 from 3258 to get 46.
Append the next digit (7) from the dividend to 46 and continue with: 467 / 803

Advancing to step 6:
467 divided by 803 is 0 with a remainder of 467.
The number 0 becomes the next digit in our result. 
Result so far: 640.0
If we subtract 0 from 467, we get 467.
Grab the next digit (4) from the dividend, add it to 467, then carry on: 4674 / 803

On to step 7:
If we divide 4674 by 803, we get 5 and a remainder of 659.
Record the quotient 5 as the next digit in the result. 
Result so far: 6405.0
The remainder is 659 after subtracting 4015 from 4674.
Grab the next digit (0) from the dividend, add it to 659, then carry on: 6590 / 803

Advancing to step 8:
6590 divided by 803 is 8 with a remainder of 166.
The next digit of our result is 8. 
Result so far: 64058.0
If we subtract 6424 from 6590, we get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Moving on to step 9:
When dividing 1660 by 803, we get 2 with a remainder of 54.
Record the quotient 2 as the next digit in the result. 
Result so far: 64058.2
If we subtract 1606 from 1660, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 10:
803 goes into 540 0 times with a remainder of 540.
The next digit of our result is 0. 
Result so far: 64058.2
The remainder is 540 after subtracting 0 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Step 11:
803 goes into 5400 6 times with a remainder of 582.
Use 6 as the next digit of our solution. 
Result so far: 64058.206
If we subtract 4818 from 5400, we get 582.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Moving on to step 12:
If we divide 5820 by 803, we get 7 and a remainder of 199.
Record the quotient 7 as the next digit in the result. 
Result so far: 64058.2067
Deduct 5621 from 5820 and we're left with 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

Let's proceed to step 13:
If we divide 1990 by 803, we get 2 and a remainder of 384.
Record the quotient 2 as the next digit in the result. 
Result so far: 64058.20672
If we subtract 1606 from 1990, we get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Step 14:
3840 divided by 803 is 4 with a remainder of 628.
The number 4 becomes the next digit in our result. 
Result so far: 64058.206724
Subtracting 3212 from 3840 leaves us with 628.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

Moving on to step 15:
When dividing 6280 by 803, we get 7 with a remainder of 659.
The next digit of our result is 7. 
Result so far: 64058.2067247
Subtract 5621 from 6280 to get 659.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6590, and continue the process.

Let's proceed to step 16:
If we divide 6590 by 803, we get 8 and a remainder of 166.
Record the quotient 8 as the next digit in the result. 
Result so far: 64058.20672478
Subtract 6424 from 6590 to get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

The final result is 64058.20672478 with a remainder of 1.66e-07.