56105603 ÷ 903 
Our goal is to divide 56105603 by 903.

Moving on to step 1:
903 goes into 5 0 times 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.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 903

Step 2:
When dividing 56 by 903, we get 0 with a remainder of 56.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 56 after subtracting 0 from 56.
Grab the next digit (1) from the dividend, add it to 56, then carry on: 561 / 903

Advancing to step 3:
561 divided by 903 is 0 with a remainder of 561.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 561, we end up with 561.
Append the next digit (0) from the dividend to 561 and continue with: 5610 / 903

Moving on to step 4:
The number 903 fits into 5610 6 times, leaving a remainder of 192.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtract 5418 from 5610 to get 192.
Append the next digit (5) from the dividend to 192 and continue with: 1925 / 903

Going ahead to step 5:
If we divide 1925 by 903, we get 2 and a remainder of 119.
The number 2 becomes the next digit in our result. 
Result so far: 62.0
Subtracting 1806 from 1925 leaves us with 119.
Fetch the next digit (6) from the dividend, attach it to 119 and continue: 1196 / 903

Step 6:
If we divide 1196 by 903, we get 1 and a remainder of 293.
Write down 1 as next digit of the result. 
Result so far: 621.0
If we subtract 903 from 1196, we get 293.
Grab the next digit (0) from the dividend, add it to 293, then carry on: 2930 / 903

On to step 7:
2930 divided by 903 is 3 with a remainder of 221.
Use 3 as the next digit of our solution. 
Result so far: 6213.0
If we take 2709 away from 2930, we end up with 221.
Take the next digit (3) from the dividend and append it to 221, then repeat: 2213 / 903

Step 8:
2213 divided by 903 is 2 with a remainder of 407.
Write down 2 as next digit of the result. 
Result so far: 62132.0
Subtracting 1806 from 2213 leaves us with 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

On to step 9:
903 goes into 4070 4 times with a remainder of 458.
Write down 4 as next digit of the result. 
Result so far: 62132.4
Deduct 3612 from 4070 and we're left with 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Going ahead to step 10:
The number 903 fits into 4580 5 times, leaving a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 62132.45
Deduct 4515 from 4580 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 11:
When dividing 650 by 903, we get 0 with a remainder of 650.
The number 0 becomes the next digit in our result. 
Result so far: 62132.45
Subtract 0 from 650 to get 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Going ahead to step 12:
903 goes into 6500 7 times with a remainder of 179.
Use 7 as the next digit of our solution. 
Result so far: 62132.4507
Subtract 6321 from 6500 to get 179.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Let's proceed to step 13:
903 can be fit into 1790 1 times, resulting in a remainder of 887.
The next digit of our result is 1. 
Result so far: 62132.45071
If we subtract 903 from 1790, we get 887.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8870, and continue the process.

Let's proceed to step 14:
If we divide 8870 by 903, we get 9 and a remainder of 743.
The number 9 becomes the next digit in our result. 
Result so far: 62132.450719
Subtract 8127 from 8870 to get 743.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7430, and continue the process.

On to step 15:
When dividing 7430 by 903, we get 8 with a remainder of 206.
Write down 8 as next digit of the result. 
Result so far: 62132.4507198
Subtract 7224 from 7430 to get 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Advancing to step 16:
When dividing 2060 by 903, we get 2 with a remainder of 254.
Record the quotient 2 as the next digit in the result. 
Result so far: 62132.45071982
If we take 1806 away from 2060, we end up with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

The quotient of the division is 62132.45071982, and the remainder is 2.54e-07.