We're dividing 15221377 by 959 
We're looking to find how many times 959 goes into 15221377.

Let's proceed to step 1:
959 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 959

On to step 2:
959 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
Subtract 0 from 15 to get 15.
Bring next digit (2) of the dividend behind the 15 and repeat the process: 152 / 959

Step 3:
If we divide 152 by 959, we get 0 and a remainder of 152.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 152 to get 152.
Include the next digit (2) from the dividend after 152, then repeat: 1522 / 959

Moving on to step 4:
959 goes into 1522 1 times with a remainder of 563.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 959 from 1522, we get 563.
Append the next digit (1) from the dividend to 563 and continue with: 5631 / 959

Let's proceed to step 5:
When dividing 5631 by 959, we get 5 with a remainder of 836.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
The remainder is 836 after subtracting 4795 from 5631.
Include the next digit (3) from the dividend after 836, then repeat: 8363 / 959

On to step 6:
The number 959 fits into 8363 8 times, leaving a remainder of 691.
The next digit of our result is 8. 
Result so far: 158.0
Subtract 7672 from 8363 to get 691.
Take the next digit (7) from the dividend and append it to 691, then repeat: 6917 / 959

Let's proceed to step 7:
If we divide 6917 by 959, we get 7 and a remainder of 204.
The number 7 becomes the next digit in our result. 
Result so far: 1587.0
Subtracting 6713 from 6917 leaves us with 204.
Bring next digit (7) of the dividend behind the 204 and repeat the process: 2047 / 959

Step 8:
If we divide 2047 by 959, we get 2 and a remainder of 129.
Record the quotient 2 as the next digit in the result. 
Result so far: 15872.0
If we take 1918 away from 2047, we end up with 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Advancing to step 9:
959 goes into 1290 1 times with a remainder of 331.
The next digit of our result is 1. 
Result so far: 15872.1
The remainder is 331 after subtracting 959 from 1290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

Going ahead to step 10:
The number 959 fits into 3310 3 times, leaving a remainder of 433.
Write down 3 as next digit of the result. 
Result so far: 15872.13
Subtract 2877 from 3310 to get 433.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4330, and continue the process.

On to step 11:
959 can be fit into 4330 4 times, resulting in a remainder of 494.
The number 4 becomes the next digit in our result. 
Result so far: 15872.134
Deduct 3836 from 4330 and we're left with 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

Moving on to step 12:
The number 959 fits into 4940 5 times, leaving a remainder of 145.
Write down 5 as next digit of the result. 
Result so far: 15872.1345
The remainder is 145 after subtracting 4795 from 4940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

On to step 13:
1450 divided by 959 is 1 with a remainder of 491.
Use 1 as the next digit of our solution. 
Result so far: 15872.13451
If we subtract 959 from 1450, we get 491.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4910, and continue the process.

On to step 14:
4910 divided by 959 is 5 with a remainder of 115.
The number 5 becomes the next digit in our result. 
Result so far: 15872.134515
Subtract 4795 from 4910 to get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

On to step 15:
The number 959 fits into 1150 1 times, leaving a remainder of 191.
The number 1 becomes the next digit in our result. 
Result so far: 15872.1345151
The remainder is 191 after subtracting 959 from 1150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

Going ahead to step 16:
When dividing 1910 by 959, we get 1 with a remainder of 951.
Record the quotient 1 as the next digit in the result. 
Result so far: 15872.13451511
Subtracting 959 from 1910 leaves us with 951.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9510, and continue the process.

The final outcome is 15872.13451511, with a leftover of 9.51e-07.