Let's divide 75864360 by 903
Our goal is to divide 75864360 by 903.

Going ahead to step 1:
The number 903 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 903

Going ahead to step 2:
The number 903 fits into 75 0 times, leaving a remainder of 75.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 75 to get 75.
Take the next digit (8) from the dividend and append it to 75, then repeat: 758 / 903

Advancing to step 3:
903 can be fit into 758 0 times, resulting in a remainder of 758.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 758 to get 758.
Bring next digit (6) of the dividend behind the 758 and repeat the process: 7586 / 903

Going ahead to step 4:
7586 divided by 903 is 8 with a remainder of 362.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 7224 from 7586 and we're left with 362.
Fetch the next digit (4) from the dividend, attach it to 362 and continue: 3624 / 903

Going ahead to step 5:
When dividing 3624 by 903, we get 4 with a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 84.0
If we subtract 3612 from 3624, we get 12.
Take the next digit (3) from the dividend and append it to 12, then repeat: 123 / 903

On to step 6:
903 can be fit into 123 0 times, resulting in a remainder of 123.
Put 0 as the next digit of the answer. 
Result so far: 840.0
If we subtract 0 from 123, we get 123.
Grab the next digit (6) from the dividend, add it to 123, then carry on: 1236 / 903

Let's proceed to step 7:
If we divide 1236 by 903, we get 1 and a remainder of 333.
Write down 1 as next digit of the result. 
Result so far: 8401.0
Subtract 903 from 1236 to get 333.
Bring next digit (0) of the dividend behind the 333 and repeat the process: 3330 / 903

Advancing to step 8:
903 goes into 3330 3 times with a remainder of 621.
Record the quotient 3 as the next digit in the result. 
Result so far: 84013.0
If we take 2709 away from 3330, we end up with 621.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6210, and continue the process.

On to step 9:
The number 903 fits into 6210 6 times, leaving a remainder of 792.
The number 6 becomes the next digit in our result. 
Result so far: 84013.6
If we subtract 5418 from 6210, we get 792.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7920, and continue the process.

Moving on to step 10:
The number 903 fits into 7920 8 times, leaving a remainder of 696.
Record the quotient 8 as the next digit in the result. 
Result so far: 84013.68
Subtracting 7224 from 7920 leaves us with 696.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6960, and continue the process.

Advancing to step 11:
903 can be fit into 6960 7 times, resulting in a remainder of 639.
Put 7 as the next digit of the answer. 
Result so far: 84013.687
The remainder is 639 after subtracting 6321 from 6960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6390, and continue the process.

Moving on to step 12:
If we divide 6390 by 903, we get 7 and a remainder of 69.
Record the quotient 7 as the next digit in the result. 
Result so far: 84013.6877
If we subtract 6321 from 6390, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

The final outcome is 84013.6877, with a leftover of 0.00069.