We look at the division of 15857940 by 699 
We want to figure out the number of times 15857940 can be divided by 699.

On to step 1:
If we divide 1 by 699, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 699

Let's proceed to step 2:
699 can be fit into 15 0 times, resulting in a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Take the next digit (8) from the dividend and append it to 15, then repeat: 158 / 699

Going ahead to step 3:
699 goes into 158 0 times with a remainder of 158.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 158 after subtracting 0 from 158.
Take the next digit (5) from the dividend and append it to 158, then repeat: 1585 / 699

On to step 4:
When dividing 1585 by 699, we get 2 with a remainder of 187.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 1398 away from 1585, we end up with 187.
Append the next digit (7) from the dividend to 187 and continue with: 1877 / 699

Moving on to step 5:
If we divide 1877 by 699, we get 2 and a remainder of 479.
Use 2 as the next digit of our solution. 
Result so far: 22.0
If we subtract 1398 from 1877, we get 479.
Include the next digit (9) from the dividend after 479, then repeat: 4799 / 699

Let's proceed to step 6:
4799 divided by 699 is 6 with a remainder of 605.
Put 6 as the next digit of the answer. 
Result so far: 226.0
If we take 4194 away from 4799, we end up with 605.
Include the next digit (4) from the dividend after 605, then repeat: 6054 / 699

Moving on to step 7:
699 goes into 6054 8 times with a remainder of 462.
Put 8 as the next digit of the answer. 
Result so far: 2268.0
The remainder is 462 after subtracting 5592 from 6054.
Include the next digit (0) from the dividend after 462, then repeat: 4620 / 699

Advancing to step 8:
The number 699 fits into 4620 6 times, leaving a remainder of 426.
The number 6 becomes the next digit in our result. 
Result so far: 22686.0
Subtract 4194 from 4620 to get 426.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4260, and continue the process.

On to step 9:
4260 divided by 699 is 6 with a remainder of 66.
Put 6 as the next digit of the answer. 
Result so far: 22686.6
Deduct 4194 from 4260 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 10:
660 divided by 699 is 0 with a remainder of 660.
Use 0 as the next digit of our solution. 
Result so far: 22686.6
If we subtract 0 from 660, we get 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Step 11:
699 goes into 6600 9 times with a remainder of 309.
Use 9 as the next digit of our solution. 
Result so far: 22686.609
If we subtract 6291 from 6600, we get 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Moving on to step 12:
When dividing 3090 by 699, we get 4 with a remainder of 294.
Put 4 as the next digit of the answer. 
Result so far: 22686.6094
Deduct 2796 from 3090 and we're left with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Advancing to step 13:
The number 699 fits into 2940 4 times, leaving a remainder of 144.
Use 4 as the next digit of our solution. 
Result so far: 22686.60944
If we subtract 2796 from 2940, we get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

The final outcome is 22686.60944, with a leftover of 0.000144.