We look at the division of 8041390 by 852 
We want to figure out the number of times 8041390 can be divided by 852.

On to step 1:
When dividing 8 by 852, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 852

Let's proceed to step 2:
80 divided by 852 is 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Grab the next digit (4) from the dividend, add it to 80, then carry on: 804 / 852

Advancing to step 3:
852 can be fit into 804 0 times, resulting in a remainder of 804.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 804, we get 804.
Take the next digit (1) from the dividend and append it to 804, then repeat: 8041 / 852

On to step 4:
When dividing 8041 by 852, we get 9 with a remainder of 373.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtract 7668 from 8041 to get 373.
Fetch the next digit (3) from the dividend, attach it to 373 and continue: 3733 / 852

Let's proceed to step 5:
The number 852 fits into 3733 4 times, leaving a remainder of 325.
The number 4 becomes the next digit in our result. 
Result so far: 94.0
If we take 3408 away from 3733, we end up with 325.
Include the next digit (9) from the dividend after 325, then repeat: 3259 / 852

Let's proceed to step 6:
The number 852 fits into 3259 3 times, leaving a remainder of 703.
The number 3 becomes the next digit in our result. 
Result so far: 943.0
If we subtract 2556 from 3259, we get 703.
Grab the next digit (0) from the dividend, add it to 703, then carry on: 7030 / 852

Going ahead to step 7:
7030 divided by 852 is 8 with a remainder of 214.
The number 8 becomes the next digit in our result. 
Result so far: 9438.0
If we subtract 6816 from 7030, we get 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Step 8:
852 can be fit into 2140 2 times, resulting in a remainder of 436.
Record the quotient 2 as the next digit in the result. 
Result so far: 9438.2
Subtract 1704 from 2140 to get 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Let's proceed to step 9:
When dividing 4360 by 852, we get 5 with a remainder of 100.
The next digit of our result is 5. 
Result so far: 9438.25
Deduct 4260 from 4360 and we're left 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 10:
If we divide 1000 by 852, we get 1 and a remainder of 148.
The number 1 becomes the next digit in our result. 
Result so far: 9438.251
The remainder is 148 after subtracting 852 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Going ahead to step 11:
The number 852 fits into 1480 1 times, leaving a remainder of 628.
The next digit of our result is 1. 
Result so far: 9438.2511
Deduct 852 from 1480 and we're left with 628.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

After the division, we end up with 9438.2511 and a remainder of 0.00628.