We're dividing 5091917 by 143 
We want to figure out the number of times 5091917 can be divided by 143.

Going ahead to step 1:
143 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 143

Let's proceed to step 2:
When dividing 50 by 143, we get 0 with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 50 after subtracting 0 from 50.
Include the next digit (9) from the dividend after 50, then repeat: 509 / 143

Step 3:
143 can be fit into 509 3 times, resulting in a remainder of 80.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 429 away from 509, we end up with 80.
Grab the next digit (1) from the dividend, add it to 80, then carry on: 801 / 143

On to step 4:
143 can be fit into 801 5 times, resulting in a remainder of 86.
The next digit of our result is 5. 
Result so far: 35.0
Subtracting 715 from 801 leaves us with 86.
Append the next digit (9) from the dividend to 86 and continue with: 869 / 143

Step 5:
143 can be fit into 869 6 times, resulting in a remainder of 11.
The number 6 becomes the next digit in our result. 
Result so far: 356.0
If we take 858 away from 869, we end up with 11.
Grab the next digit (1) from the dividend, add it to 11, then carry on: 111 / 143

Step 6:
If we divide 111 by 143, we get 0 and a remainder of 111.
Put 0 as the next digit of the answer. 
Result so far: 3560.0
If we take 0 away from 111, we end up with 111.
Append the next digit (7) from the dividend to 111 and continue with: 1117 / 143

Step 7:
If we divide 1117 by 143, we get 7 and a remainder of 116.
Record the quotient 7 as the next digit in the result. 
Result so far: 35607.0
Deduct 1001 from 1117 and we're left with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Step 8:
When dividing 1160 by 143, we get 8 with a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 35607.8
Subtract 1144 from 1160 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 9:
143 can be fit into 160 1 times, resulting in a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 35607.81
Subtract 143 from 160 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 10:
If we divide 170 by 143, we get 1 and a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 35607.811
Subtracting 143 from 170 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

The final result is 35607.811 with a remainder of 0.0027.