We divide 58451378 by 803
We want to figure out the number of times 58451378 can be divided by 803.

Advancing to step 1:
The number 803 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 803

Advancing to step 2:
58 divided by 803 is 0 with a remainder of 58.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 58 to get 58.
Bring next digit (4) of the dividend behind the 58 and repeat the process: 584 / 803

Advancing to step 3:
803 goes into 584 0 times with a remainder of 584.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 584, we end up with 584.
Take the next digit (5) from the dividend and append it to 584, then repeat: 5845 / 803

On to step 4:
803 can be fit into 5845 7 times, resulting in a remainder of 224.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtract 5621 from 5845 to get 224.
Append the next digit (1) from the dividend to 224 and continue with: 2241 / 803

Moving on to step 5:
If we divide 2241 by 803, we get 2 and a remainder of 635.
Put 2 as the next digit of the answer. 
Result so far: 72.0
If we subtract 1606 from 2241, we get 635.
Take the next digit (3) from the dividend and append it to 635, then repeat: 6353 / 803

Let's proceed to step 6:
When dividing 6353 by 803, we get 7 with a remainder of 732.
The number 7 becomes the next digit in our result. 
Result so far: 727.0
Subtract 5621 from 6353 to get 732.
Append the next digit (7) from the dividend to 732 and continue with: 7327 / 803

Step 7:
803 can be fit into 7327 9 times, resulting in a remainder of 100.
Use 9 as the next digit of our solution. 
Result so far: 7279.0
The remainder is 100 after subtracting 7227 from 7327.
Fetch the next digit (8) from the dividend, attach it to 100 and continue: 1008 / 803

On to step 8:
1008 divided by 803 is 1 with a remainder of 205.
Write down 1 as next digit of the result. 
Result so far: 72791.0
Subtracting 803 from 1008 leaves us with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Going ahead to step 9:
2050 divided by 803 is 2 with a remainder of 444.
Record the quotient 2 as the next digit in the result. 
Result so far: 72791.2
Subtract 1606 from 2050 to get 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Let's proceed to step 10:
The number 803 fits into 4440 5 times, leaving a remainder of 425.
Record the quotient 5 as the next digit in the result. 
Result so far: 72791.25
Subtract 4015 from 4440 to get 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Going ahead to step 11:
The number 803 fits into 4250 5 times, leaving a remainder of 235.
Put 5 as the next digit of the answer. 
Result so far: 72791.255
Subtracting 4015 from 4250 leaves us with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

The final outcome is 72791.255, with a leftover of 0.0235.