79283655 ÷ 642 
We want to figure out the number of times 79283655 can be divided by 642.

Going ahead to step 1:
642 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 642

On to step 2:
If we divide 79 by 642, we get 0 and a remainder of 79.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 79 leaves us with 79.
Bring next digit (2) of the dividend behind the 79 and repeat the process: 792 / 642

Let's proceed to step 3:
642 can be fit into 792 1 times, resulting in a remainder of 150.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 642 from 792 leaves us with 150.
Bring next digit (8) of the dividend behind the 150 and repeat the process: 1508 / 642

Step 4:
The number 642 fits into 1508 2 times, leaving a remainder of 224.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtract 1284 from 1508 to get 224.
Fetch the next digit (3) from the dividend, attach it to 224 and continue: 2243 / 642

Let's proceed to step 5:
The number 642 fits into 2243 3 times, leaving a remainder of 317.
Use 3 as the next digit of our solution. 
Result so far: 123.0
Subtracting 1926 from 2243 leaves us with 317.
Append the next digit (6) from the dividend to 317 and continue with: 3176 / 642

Advancing to step 6:
If we divide 3176 by 642, we get 4 and a remainder of 608.
Use 4 as the next digit of our solution. 
Result so far: 1234.0
Subtracting 2568 from 3176 leaves us with 608.
Include the next digit (5) from the dividend after 608, then repeat: 6085 / 642

On to step 7:
642 can be fit into 6085 9 times, resulting in a remainder of 307.
The next digit of our result is 9. 
Result so far: 12349.0
Deduct 5778 from 6085 and we're left with 307.
Grab the next digit (5) from the dividend, add it to 307, then carry on: 3075 / 642

On to step 8:
642 can be fit into 3075 4 times, resulting in a remainder of 507.
Put 4 as the next digit of the answer. 
Result so far: 123494.0
Deduct 2568 from 3075 and we're left with 507.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5070, and continue the process.

Step 9:
When dividing 5070 by 642, we get 7 with a remainder of 576.
Use 7 as the next digit of our solution. 
Result so far: 123494.7
The remainder is 576 after subtracting 4494 from 5070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Advancing to step 10:
642 can be fit into 5760 8 times, resulting in a remainder of 624.
Write down 8 as next digit of the result. 
Result so far: 123494.78
The remainder is 624 after subtracting 5136 from 5760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Advancing to step 11:
The number 642 fits into 6240 9 times, leaving a remainder of 462.
Record the quotient 9 as the next digit in the result. 
Result so far: 123494.789
If we take 5778 away from 6240, we end up with 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

On to step 12:
When dividing 4620 by 642, we get 7 with a remainder of 126.
The number 7 becomes the next digit in our result. 
Result so far: 123494.7897
Deduct 4494 from 4620 and we're left with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Going ahead to step 13:
If we divide 1260 by 642, we get 1 and a remainder of 618.
Record the quotient 1 as the next digit in the result. 
Result so far: 123494.78971
If we take 642 away from 1260, we end up with 618.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6180, and continue the process.

On to step 14:
6180 divided by 642 is 9 with a remainder of 402.
Record the quotient 9 as the next digit in the result. 
Result so far: 123494.789719
If we subtract 5778 from 6180, we get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Step 15:
If we divide 4020 by 642, we get 6 and a remainder of 168.
The number 6 becomes the next digit in our result. 
Result so far: 123494.7897196
The remainder is 168 after subtracting 3852 from 4020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 16:
642 can be fit into 1680 2 times, resulting in a remainder of 396.
Write down 2 as next digit of the result. 
Result so far: 123494.78971962
If we subtract 1284 from 1680, we get 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

After the division, we end up with 123494.78971962 and a remainder of 3.96e-07.