10074854 ÷ 639 
We want to figure out the number of times 10074854 can be divided by 639.

On to step 1:
1 divided by 639 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 639

Let's proceed to step 2:
639 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 10 leaves us with 10.
Include the next digit (0) from the dividend after 10, then repeat: 100 / 639

Moving on to step 3:
When dividing 100 by 639, we get 0 with a remainder of 100.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 100, we end up with 100.
Grab the next digit (7) from the dividend, add it to 100, then carry on: 1007 / 639

Step 4:
When dividing 1007 by 639, we get 1 with a remainder of 368.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 639 from 1007 to get 368.
Grab the next digit (4) from the dividend, add it to 368, then carry on: 3684 / 639

Let's proceed to step 5:
When dividing 3684 by 639, we get 5 with a remainder of 489.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we take 3195 away from 3684, we end up with 489.
Take the next digit (8) from the dividend and append it to 489, then repeat: 4898 / 639

Step 6:
639 goes into 4898 7 times with a remainder of 425.
The number 7 becomes the next digit in our result. 
Result so far: 157.0
Subtracting 4473 from 4898 leaves us with 425.
Grab the next digit (5) from the dividend, add it to 425, then carry on: 4255 / 639

Advancing to step 7:
639 can be fit into 4255 6 times, resulting in a remainder of 421.
Put 6 as the next digit of the answer. 
Result so far: 1576.0
If we subtract 3834 from 4255, we get 421.
Append the next digit (4) from the dividend to 421 and continue with: 4214 / 639

Moving on to step 8:
639 can be fit into 4214 6 times, resulting in a remainder of 380.
The number 6 becomes the next digit in our result. 
Result so far: 15766.0
If we subtract 3834 from 4214, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 9:
639 can be fit into 3800 5 times, resulting in a remainder of 605.
The number 5 becomes the next digit in our result. 
Result so far: 15766.5
Deduct 3195 from 3800 and we're left with 605.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6050, and continue the process.

Advancing to step 10:
The number 639 fits into 6050 9 times, leaving a remainder of 299.
The number 9 becomes the next digit in our result. 
Result so far: 15766.59
Deduct 5751 from 6050 and we're left with 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Let's proceed to step 11:
639 can be fit into 2990 4 times, resulting in a remainder of 434.
Use 4 as the next digit of our solution. 
Result so far: 15766.594
Subtracting 2556 from 2990 leaves us with 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Going ahead to step 12:
If we divide 4340 by 639, we get 6 and a remainder of 506.
Record the quotient 6 as the next digit in the result. 
Result so far: 15766.5946
Subtract 3834 from 4340 to get 506.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

Let's proceed to step 13:
When dividing 5060 by 639, we get 7 with a remainder of 587.
Write down 7 as next digit of the result. 
Result so far: 15766.59467
The remainder is 587 after subtracting 4473 from 5060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5870, and continue the process.

Let's proceed to step 14:
When dividing 5870 by 639, we get 9 with a remainder of 119.
Record the quotient 9 as the next digit in the result. 
Result so far: 15766.594679
Subtracting 5751 from 5870 leaves us with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Let's proceed to step 15:
1190 divided by 639 is 1 with a remainder of 551.
The number 1 becomes the next digit in our result. 
Result so far: 15766.5946791
The remainder is 551 after subtracting 639 from 1190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5510, and continue the process.

Advancing to step 16:
639 can be fit into 5510 8 times, resulting in a remainder of 398.
Write down 8 as next digit of the result. 
Result so far: 15766.59467918
Deduct 5112 from 5510 and we're left with 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

The quotient of the division is 15766.59467918, and the remainder is 3.98e-07.