159553 ÷ 51 
We want to divide 159553 by 51.

On to step 1:
51 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 51

Step 2:
The number 51 fits into 15 0 times, leaving a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Fetch the next digit (9) from the dividend, attach it to 15 and continue: 159 / 51

Advancing to step 3:
51 can be fit into 159 3 times, resulting in a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 153 from 159 and we're left with 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 51

Advancing to step 4:
65 divided by 51 is 1 with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 31.0
Deduct 51 from 65 and we're left with 14.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 51

Going ahead to step 5:
145 divided by 51 is 2 with a remainder of 43.
The next digit of our result is 2. 
Result so far: 312.0
Subtracting 102 from 145 leaves us with 43.
Include the next digit (3) from the dividend after 43, then repeat: 433 / 51

Going ahead to step 6:
If we divide 433 by 51, we get 8 and a remainder of 25.
Put 8 as the next digit of the answer. 
Result so far: 3128.0
If we take 408 away from 433, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 7:
If we divide 250 by 51, we get 4 and a remainder of 46.
The number 4 becomes the next digit in our result. 
Result so far: 3128.4
Subtract 204 from 250 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 8:
51 goes into 460 9 times with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 3128.49
If we subtract 459 from 460, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 9:
10 divided by 51 is 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 3128.49
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
The number 51 fits into 100 1 times, leaving a remainder of 49.
Use 1 as the next digit of our solution. 
Result so far: 3128.4901
Deduct 51 from 100 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 11:
51 can be fit into 490 9 times, resulting in a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 3128.49019
Subtract 459 from 490 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 12:
If we divide 310 by 51, we get 6 and a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 3128.490196
If we subtract 306 from 310, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 13:
51 can be fit into 40 0 times, resulting in a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 3128.490196
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 14:
51 can be fit into 400 7 times, resulting in a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 3128.49019607
Subtract 357 from 400 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Our division results in 3128.49019607 with a remaining 4.3e-08.