51698783 divided by 138 
We want to divide 51698783 by 138.

Advancing to step 1:
When dividing 5 by 138, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 138

On to step 2:
51 divided by 138 is 0 with a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Fetch the next digit (6) from the dividend, attach it to 51 and continue: 516 / 138

Advancing to step 3:
516 divided by 138 is 3 with a remainder of 102.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 414 from 516 to get 102.
Fetch the next digit (9) from the dividend, attach it to 102 and continue: 1029 / 138

Going ahead to step 4:
1029 divided by 138 is 7 with a remainder of 63.
The next digit of our result is 7. 
Result so far: 37.0
Deduct 966 from 1029 and we're left with 63.
Fetch the next digit (8) from the dividend, attach it to 63 and continue: 638 / 138

Moving on to step 5:
138 goes into 638 4 times with a remainder of 86.
Record the quotient 4 as the next digit in the result. 
Result so far: 374.0
Deduct 552 from 638 and we're left with 86.
Take the next digit (7) from the dividend and append it to 86, then repeat: 867 / 138

Moving on to step 6:
When dividing 867 by 138, we get 6 with a remainder of 39.
Record the quotient 6 as the next digit in the result. 
Result so far: 3746.0
If we take 828 away from 867, we end up with 39.
Bring next digit (8) of the dividend behind the 39 and repeat the process: 398 / 138

Advancing to step 7:
138 goes into 398 2 times with a remainder of 122.
Use 2 as the next digit of our solution. 
Result so far: 37462.0
The remainder is 122 after subtracting 276 from 398.
Include the next digit (3) from the dividend after 122, then repeat: 1223 / 138

Going ahead to step 8:
If we divide 1223 by 138, we get 8 and a remainder of 119.
Put 8 as the next digit of the answer. 
Result so far: 374628.0
The remainder is 119 after subtracting 1104 from 1223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Moving on to step 9:
The number 138 fits into 1190 8 times, leaving a remainder of 86.
The number 8 becomes the next digit in our result. 
Result so far: 374628.8
If we subtract 1104 from 1190, we get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Step 10:
138 goes into 860 6 times with a remainder of 32.
Write down 6 as next digit of the result. 
Result so far: 374628.86
If we subtract 828 from 860, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 11:
138 can be fit into 320 2 times, resulting in a remainder of 44.
The next digit of our result is 2. 
Result so far: 374628.862
The remainder is 44 after subtracting 276 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 12:
The number 138 fits into 440 3 times, leaving a remainder of 26.
The number 3 becomes the next digit in our result. 
Result so far: 374628.8623
Subtracting 414 from 440 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 13:
When dividing 260 by 138, we get 1 with a remainder of 122.
Write down 1 as next digit of the result. 
Result so far: 374628.86231
Deduct 138 from 260 and we're left with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Moving on to step 14:
If we divide 1220 by 138, we get 8 and a remainder of 116.
Use 8 as the next digit of our solution. 
Result so far: 374628.862318
Deduct 1104 from 1220 and we're left with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Advancing to step 15:
1160 divided by 138 is 8 with a remainder of 56.
The number 8 becomes the next digit in our result. 
Result so far: 374628.8623188
Deduct 1104 from 1160 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final outcome is 374628.8623188, with a leftover of 5.6e-07.