Let's divide 5115311 by 850
We want to figure out the number of times 5115311 can be divided by 850.

Moving on to step 1:
If we divide 5 by 850, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 850

Moving on to step 2:
850 can be fit into 51 0 times, resulting in a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Grab the next digit (1) from the dividend, add it to 51, then carry on: 511 / 850

Advancing to step 3:
If we divide 511 by 850, we get 0 and a remainder of 511.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 511, we get 511.
Append the next digit (5) from the dividend to 511 and continue with: 5115 / 850

On to step 4:
If we divide 5115 by 850, we get 6 and a remainder of 15.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 5100 from 5115 leaves us with 15.
Include the next digit (3) from the dividend after 15, then repeat: 153 / 850

Step 5:
The number 850 fits into 153 0 times, leaving a remainder of 153.
Use 0 as the next digit of our solution. 
Result so far: 60.0
Subtract 0 from 153 to get 153.
Fetch the next digit (1) from the dividend, attach it to 153 and continue: 1531 / 850

On to step 6:
The number 850 fits into 1531 1 times, leaving a remainder of 681.
Record the quotient 1 as the next digit in the result. 
Result so far: 601.0
If we take 850 away from 1531, we end up with 681.
Include the next digit (1) from the dividend after 681, then repeat: 6811 / 850

Advancing to step 7:
6811 divided by 850 is 8 with a remainder of 11.
Write down 8 as next digit of the result. 
Result so far: 6018.0
Subtract 6800 from 6811 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 8:
110 divided by 850 is 0 with a remainder of 110.
Write down 0 as next digit of the result. 
Result so far: 6018.0
Subtract 0 from 110 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 9:
When dividing 1100 by 850, we get 1 with a remainder of 250.
Write down 1 as next digit of the result. 
Result so far: 6018.01
Subtracting 850 from 1100 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 10:
If we divide 2500 by 850, we get 2 and a remainder of 800.
Record the quotient 2 as the next digit in the result. 
Result so far: 6018.012
If we take 1700 away from 2500, we end up with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Advancing to step 11:
8000 divided by 850 is 9 with a remainder of 350.
Use 9 as the next digit of our solution. 
Result so far: 6018.0129
Subtract 7650 from 8000 to get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

On to step 12:
850 can be fit into 3500 4 times, resulting in a remainder of 100.
Record the quotient 4 as the next digit in the result. 
Result so far: 6018.01294
If we take 3400 away from 3500, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 13:
When dividing 1000 by 850, we get 1 with a remainder of 150.
Record the quotient 1 as the next digit in the result. 
Result so far: 6018.012941
Subtract 850 from 1000 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 14:
When dividing 1500 by 850, we get 1 with a remainder of 650.
Write down 1 as next digit of the result. 
Result so far: 6018.0129411
Deduct 850 from 1500 and we're left with 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

The final outcome is 6018.0129411, with a leftover of 6.5e-06.