51101321 ÷ 135 
We want to figure out the number of times 51101321 can be divided by 135.

On to step 1:
5 divided by 135 is 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 135

Advancing to step 2:
51 divided by 135 is 0 with a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Append the next digit (1) from the dividend to 51 and continue with: 511 / 135

Advancing to step 3:
When dividing 511 by 135, we get 3 with a remainder of 106.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 405 away from 511, we end up with 106.
Bring next digit (0) of the dividend behind the 106 and repeat the process: 1060 / 135

Going ahead to step 4:
When dividing 1060 by 135, we get 7 with a remainder of 115.
Use 7 as the next digit of our solution. 
Result so far: 37.0
Subtracting 945 from 1060 leaves us with 115.
Include the next digit (1) from the dividend after 115, then repeat: 1151 / 135

Moving on to step 5:
If we divide 1151 by 135, we get 8 and a remainder of 71.
Record the quotient 8 as the next digit in the result. 
Result so far: 378.0
Subtract 1080 from 1151 to get 71.
Bring next digit (3) of the dividend behind the 71 and repeat the process: 713 / 135

Moving on to step 6:
713 divided by 135 is 5 with a remainder of 38.
Record the quotient 5 as the next digit in the result. 
Result so far: 3785.0
If we take 675 away from 713, we end up with 38.
Take the next digit (2) from the dividend and append it to 38, then repeat: 382 / 135

Moving on to step 7:
When dividing 382 by 135, we get 2 with a remainder of 112.
Put 2 as the next digit of the answer. 
Result so far: 37852.0
Deduct 270 from 382 and we're left with 112.
Append the next digit (1) from the dividend to 112 and continue with: 1121 / 135

Advancing to step 8:
When dividing 1121 by 135, we get 8 with a remainder of 41.
Write down 8 as next digit of the result. 
Result so far: 378528.0
The remainder is 41 after subtracting 1080 from 1121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 9:
When dividing 410 by 135, we get 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 378528.3
Deduct 405 from 410 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 10:
When dividing 50 by 135, we get 0 with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 378528.3
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 11:
If we divide 500 by 135, we get 3 and a remainder of 95.
Write down 3 as next digit of the result. 
Result so far: 378528.303
Deduct 405 from 500 and we're left with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Advancing to step 12:
135 can be fit into 950 7 times, resulting in a remainder of 5.
The next digit of our result is 7. 
Result so far: 378528.3037
Subtracting 945 from 950 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 13:
50 divided by 135 is 0 with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 378528.3037
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 14:
135 can be fit into 500 3 times, resulting in a remainder of 95.
Use 3 as the next digit of our solution. 
Result so far: 378528.303703
Deduct 405 from 500 and we're left with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

On to step 15:
If we divide 950 by 135, we get 7 and a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 378528.3037037
The remainder is 5 after subtracting 945 from 950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 16:
135 can be fit into 50 0 times, resulting in a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 378528.3037037
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The quotient of the division is 378528.3037037, and the remainder is 5e-08.