We look at the division of 745303 by 86 
We want to figure out the number of times 745303 can be divided by 86.

On to step 1:
The number 86 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (4) from the dividend to 7 and continue with: 74 / 86

Going ahead to step 2:
When dividing 74 by 86, we get 0 with a remainder of 74.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 74, we get 74.
Fetch the next digit (5) from the dividend, attach it to 74 and continue: 745 / 86

Advancing to step 3:
745 divided by 86 is 8 with a remainder of 57.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Deduct 688 from 745 and we're left with 57.
Grab the next digit (3) from the dividend, add it to 57, then carry on: 573 / 86

Let's proceed to step 4:
86 can be fit into 573 6 times, resulting in a remainder of 57.
The next digit of our result is 6. 
Result so far: 86.0
Subtract 516 from 573 to get 57.
Fetch the next digit (0) from the dividend, attach it to 57 and continue: 570 / 86

Going ahead to step 5:
86 can be fit into 570 6 times, resulting in a remainder of 54.
Put 6 as the next digit of the answer. 
Result so far: 866.0
If we subtract 516 from 570, we get 54.
Take the next digit (3) from the dividend and append it to 54, then repeat: 543 / 86

Step 6:
86 goes into 543 6 times with a remainder of 27.
Put 6 as the next digit of the answer. 
Result so far: 8666.0
Subtracting 516 from 543 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.

Going ahead to step 7:
When dividing 270 by 86, we get 3 with a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 8666.3
Subtract 258 from 270 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 8:
86 can be fit into 120 1 times, resulting in a remainder of 34.
The number 1 becomes the next digit in our result. 
Result so far: 8666.31
If we take 86 away from 120, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 9:
If we divide 340 by 86, we get 3 and a remainder of 82.
Use 3 as the next digit of our solution. 
Result so far: 8666.313
The remainder is 82 after subtracting 258 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Advancing to step 10:
86 goes into 820 9 times with a remainder of 46.
Use 9 as the next digit of our solution. 
Result so far: 8666.3139
Subtracting 774 from 820 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 11:
86 goes into 460 5 times with a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 8666.31395
Deduct 430 from 460 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 12:
When dividing 300 by 86, we get 3 with a remainder of 42.
Put 3 as the next digit of the answer. 
Result so far: 8666.313953
The remainder is 42 after subtracting 258 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 13:
86 can be fit into 420 4 times, resulting in a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 8666.3139534
Subtracting 344 from 420 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 14:
When dividing 760 by 86, we get 8 with a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 8666.31395348
The remainder is 72 after subtracting 688 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final outcome is 8666.31395348, with a leftover of 7.2e-08.