We're dividing 7928450 by 86 
We want to divide 7928450 by 86.

Step 1:
If we divide 7 by 86, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 86

Let's proceed to step 2:
The number 86 fits into 79 0 times, leaving a remainder of 79.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 79, we get 79.
Fetch the next digit (2) from the dividend, attach it to 79 and continue: 792 / 86

On to step 3:
If we divide 792 by 86, we get 9 and a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 774 from 792 and we're left with 18.
Bring next digit (8) of the dividend behind the 18 and repeat the process: 188 / 86

Advancing to step 4:
188 divided by 86 is 2 with a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 92.0
If we take 172 away from 188, we end up with 16.
Take the next digit (4) from the dividend and append it to 16, then repeat: 164 / 86

On to step 5:
When dividing 164 by 86, we get 1 with a remainder of 78.
Use 1 as the next digit of our solution. 
Result so far: 921.0
Deduct 86 from 164 and we're left with 78.
Fetch the next digit (5) from the dividend, attach it to 78 and continue: 785 / 86

Moving on to step 6:
785 divided by 86 is 9 with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 9219.0
If we subtract 774 from 785, we get 11.
Fetch the next digit (0) from the dividend, attach it to 11 and continue: 110 / 86

Advancing to step 7:
110 divided by 86 is 1 with a remainder of 24.
Use 1 as the next digit of our solution. 
Result so far: 92191.0
If we subtract 86 from 110, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 8:
86 goes into 240 2 times with a remainder of 68.
The next digit of our result is 2. 
Result so far: 92191.2
If we take 172 away from 240, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 9:
When dividing 680 by 86, we get 7 with a remainder of 78.
Use 7 as the next digit of our solution. 
Result so far: 92191.27
If we subtract 602 from 680, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 10:
86 goes into 780 9 times with a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 92191.279
If we take 774 away from 780, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 11:
The number 86 fits into 60 0 times, leaving a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 92191.279
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 12:
86 can be fit into 600 6 times, resulting in a remainder of 84.
Write down 6 as next digit of the result. 
Result so far: 92191.27906
Subtracting 516 from 600 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 13:
86 can be fit into 840 9 times, resulting in a remainder of 66.
The next digit of our result is 9. 
Result so far: 92191.279069
Subtract 774 from 840 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 14:
When dividing 660 by 86, we get 7 with a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 92191.2790697
Subtract 602 from 660 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 15:
The number 86 fits into 580 6 times, leaving a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 92191.27906976
Subtracting 516 from 580 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final result is 92191.27906976 with a remainder of 6.4e-08.