Let's divide 64538170 by 993
Our goal is to divide 64538170 by 993.

Advancing to step 1:
993 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 993

On to step 2:
993 goes into 64 0 times with a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Append the next digit (5) from the dividend to 64 and continue with: 645 / 993

On to step 3:
645 divided by 993 is 0 with a remainder of 645.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 645 to get 645.
Grab the next digit (3) from the dividend, add it to 645, then carry on: 6453 / 993

Going ahead to step 4:
6453 divided by 993 is 6 with a remainder of 495.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtracting 5958 from 6453 leaves us with 495.
Fetch the next digit (8) from the dividend, attach it to 495 and continue: 4958 / 993

Step 5:
If we divide 4958 by 993, we get 4 and a remainder of 986.
Write down 4 as next digit of the result. 
Result so far: 64.0
If we take 3972 away from 4958, we end up with 986.
Include the next digit (1) from the dividend after 986, then repeat: 9861 / 993

Advancing to step 6:
993 can be fit into 9861 9 times, resulting in a remainder of 924.
Put 9 as the next digit of the answer. 
Result so far: 649.0
Subtract 8937 from 9861 to get 924.
Include the next digit (7) from the dividend after 924, then repeat: 9247 / 993

Step 7:
When dividing 9247 by 993, we get 9 with a remainder of 310.
Use 9 as the next digit of our solution. 
Result so far: 6499.0
The remainder is 310 after subtracting 8937 from 9247.
Append the next digit (0) from the dividend to 310 and continue with: 3100 / 993

On to step 8:
When dividing 3100 by 993, we get 3 with a remainder of 121.
Put 3 as the next digit of the answer. 
Result so far: 64993.0
If we take 2979 away from 3100, we end up with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Moving on to step 9:
1210 divided by 993 is 1 with a remainder of 217.
Record the quotient 1 as the next digit in the result. 
Result so far: 64993.1
Subtracting 993 from 1210 leaves us with 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

On to step 10:
The number 993 fits into 2170 2 times, leaving a remainder of 184.
Write down 2 as next digit of the result. 
Result so far: 64993.12
If we subtract 1986 from 2170, we get 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Let's proceed to step 11:
The number 993 fits into 1840 1 times, leaving a remainder of 847.
Use 1 as the next digit of our solution. 
Result so far: 64993.121
Deduct 993 from 1840 and we're left with 847.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8470, and continue the process.

Advancing to step 12:
If we divide 8470 by 993, we get 8 and a remainder of 526.
The next digit of our result is 8. 
Result so far: 64993.1218
If we take 7944 away from 8470, we end up with 526.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5260, and continue the process.

Let's proceed to step 13:
5260 divided by 993 is 5 with a remainder of 295.
Use 5 as the next digit of our solution. 
Result so far: 64993.12185
Deduct 4965 from 5260 and we're left with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Step 14:
If we divide 2950 by 993, we get 2 and a remainder of 964.
The next digit of our result is 2. 
Result so far: 64993.121852
If we subtract 1986 from 2950, we get 964.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9640, and continue the process.

Let's proceed to step 15:
If we divide 9640 by 993, we get 9 and a remainder of 703.
Put 9 as the next digit of the answer. 
Result so far: 64993.1218529
The remainder is 703 after subtracting 8937 from 9640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7030, and continue the process.

Let's proceed to step 16:
993 can be fit into 7030 7 times, resulting in a remainder of 79.
Record the quotient 7 as the next digit in the result. 
Result so far: 64993.12185297
Subtracting 6951 from 7030 leaves us with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

The final outcome is 64993.12185297, with a leftover of 7.9e-08.