Let's divide 64400599 by 422
Our goal is to divide 64400599 by 422.

Step 1:
6 divided by 422 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 422

On to step 2:
If we divide 64 by 422, we get 0 and a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Bring next digit (4) of the dividend behind the 64 and repeat the process: 644 / 422

Advancing to step 3:
422 goes into 644 1 times with a remainder of 222.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 422 from 644 to get 222.
Include the next digit (0) from the dividend after 222, then repeat: 2220 / 422

On to step 4:
When dividing 2220 by 422, we get 5 with a remainder of 110.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtract 2110 from 2220 to get 110.
Take the next digit (0) from the dividend and append it to 110, then repeat: 1100 / 422

On to step 5:
1100 divided by 422 is 2 with a remainder of 256.
The number 2 becomes the next digit in our result. 
Result so far: 152.0
Deduct 844 from 1100 and we're left with 256.
Include the next digit (5) from the dividend after 256, then repeat: 2565 / 422

Step 6:
2565 divided by 422 is 6 with a remainder of 33.
The number 6 becomes the next digit in our result. 
Result so far: 1526.0
If we subtract 2532 from 2565, we get 33.
Grab the next digit (9) from the dividend, add it to 33, then carry on: 339 / 422

Let's proceed to step 7:
If we divide 339 by 422, we get 0 and a remainder of 339.
Use 0 as the next digit of our solution. 
Result so far: 15260.0
The remainder is 339 after subtracting 0 from 339.
Grab the next digit (9) from the dividend, add it to 339, then carry on: 3399 / 422

Let's proceed to step 8:
The number 422 fits into 3399 8 times, leaving a remainder of 23.
Use 8 as the next digit of our solution. 
Result so far: 152608.0
Subtracting 3376 from 3399 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 9:
422 goes into 230 0 times with a remainder of 230.
Write down 0 as next digit of the result. 
Result so far: 152608.0
Subtracting 0 from 230 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Advancing to step 10:
422 goes into 2300 5 times with a remainder of 190.
The number 5 becomes the next digit in our result. 
Result so far: 152608.05
Deduct 2110 from 2300 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Going ahead to step 11:
422 can be fit into 1900 4 times, resulting in a remainder of 212.
Use 4 as the next digit of our solution. 
Result so far: 152608.054
If we subtract 1688 from 1900, we get 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Step 12:
When dividing 2120 by 422, we get 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 152608.0545
If we subtract 2110 from 2120, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 13:
422 goes into 100 0 times with a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 152608.0545
Subtracting 0 from 100 leaves us 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.

On to step 14:
If we divide 1000 by 422, we get 2 and a remainder of 156.
Write down 2 as next digit of the result. 
Result so far: 152608.054502
Deduct 844 from 1000 and we're left with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

On to step 15:
If we divide 1560 by 422, we get 3 and a remainder of 294.
Write down 3 as next digit of the result. 
Result so far: 152608.0545023
If we subtract 1266 from 1560, we get 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Going ahead to step 16:
422 can be fit into 2940 6 times, resulting in a remainder of 408.
Write down 6 as next digit of the result. 
Result so far: 152608.05450236
The remainder is 408 after subtracting 2532 from 2940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

The final outcome is 152608.05450236, with a leftover of 4.08e-07.