Let's divide 64190437 by 813
Our goal is to divide 64190437 by 813.

Step 1:
6 divided by 813 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 813

On to step 2:
813 can be fit into 64 0 times, resulting in a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Append the next digit (1) from the dividend to 64 and continue with: 641 / 813

Moving on to step 3:
813 goes into 641 0 times with a remainder of 641.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 641 to get 641.
Fetch the next digit (9) from the dividend, attach it to 641 and continue: 6419 / 813

Step 4:
813 can be fit into 6419 7 times, resulting in a remainder of 728.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 728 after subtracting 5691 from 6419.
Grab the next digit (0) from the dividend, add it to 728, then carry on: 7280 / 813

Going ahead to step 5:
813 goes into 7280 8 times with a remainder of 776.
Record the quotient 8 as the next digit in the result. 
Result so far: 78.0
Subtract 6504 from 7280 to get 776.
Include the next digit (4) from the dividend after 776, then repeat: 7764 / 813

Moving on to step 6:
7764 divided by 813 is 9 with a remainder of 447.
Write down 9 as next digit of the result. 
Result so far: 789.0
If we take 7317 away from 7764, we end up with 447.
Take the next digit (3) from the dividend and append it to 447, then repeat: 4473 / 813

On to step 7:
813 goes into 4473 5 times with a remainder of 408.
Record the quotient 5 as the next digit in the result. 
Result so far: 7895.0
If we subtract 4065 from 4473, we get 408.
Bring next digit (7) of the dividend behind the 408 and repeat the process: 4087 / 813

Advancing to step 8:
813 goes into 4087 5 times with a remainder of 22.
The next digit of our result is 5. 
Result so far: 78955.0
Subtracting 4065 from 4087 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 9:
When dividing 220 by 813, we get 0 with a remainder of 220.
Record the quotient 0 as the next digit in the result. 
Result so far: 78955.0
Subtract 0 from 220 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 10:
If we divide 2200 by 813, we get 2 and a remainder of 574.
Record the quotient 2 as the next digit in the result. 
Result so far: 78955.02
Subtract 1626 from 2200 to get 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Moving on to step 11:
813 goes into 5740 7 times with a remainder of 49.
The next digit of our result is 7. 
Result so far: 78955.027
If we subtract 5691 from 5740, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 12:
490 divided by 813 is 0 with a remainder of 490.
The number 0 becomes the next digit in our result. 
Result so far: 78955.027
If we take 0 away from 490, we end up with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Moving on to step 13:
4900 divided by 813 is 6 with a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 78955.02706
Subtracting 4878 from 4900 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 14:
If we divide 220 by 813, we get 0 and a remainder of 220.
The next digit of our result is 0. 
Result so far: 78955.02706
If we take 0 away from 220, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Going ahead to step 15:
813 can be fit into 2200 2 times, resulting in a remainder of 574.
Use 2 as the next digit of our solution. 
Result so far: 78955.0270602
The remainder is 574 after subtracting 1626 from 2200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Moving on to step 16:
813 can be fit into 5740 7 times, resulting in a remainder of 49.
Put 7 as the next digit of the answer. 
Result so far: 78955.02706027
If we take 5691 away from 5740, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

The final result is 78955.02706027 with a remainder of 4.9e-08.